[
 {
  "source": "ACS Junior 2022 P3 Semestral Assessment 2 Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{7}{12}\\) + \\(\\dfrac{1}{6}\\).",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "\\(\\dfrac{8}{18}\\)",
  "answer2": "\\(\\dfrac{5}{12}\\)",
  "answer3": "\\(\\dfrac{8}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Junior 2022 P3 Semestral Assessment 2 Q22",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value in the box. \\(\\dfrac{2}{3}\\) − \\(\\dfrac{1}{9}\\) = 1 −",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Junior 2025 P3 End of Year Exam Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{2}{5}\\) - \\(\\dfrac{3}{10}\\) .",
  "answer0": "\\(\\dfrac{1}{10}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{7}{10}\\)",
  "answer3": "\\(\\dfrac{3}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2022 P3 Semestral Assessment 2 Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box? Express your answer in its simplest form. \\(\\dfrac{3}{4}\\) + \\(\\dfrac{1}{12}\\)",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{4}{6}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2022 P3 Semestral Assessment 2 Q28",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the difference between \\(\\dfrac{11}{12}\\) and \\(\\dfrac{1}{4}\\). Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2023 P3 End of Year Exam Q35",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "There were some marbles in a box. \\(\\dfrac{1}{3}\\) of the marbles were green and \\(\\dfrac{5}{12}\\) of the marbles were red. The rest of the marbles were blue. What fraction of the marbles were blue? Give your answers in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2023 P3 Weighted Assessment Q40",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the difference between \\(\\dfrac{1}{3}\\) and \\(\\dfrac{5}{6}\\). Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2023 P3 Weighted Assessment Q45",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Gopal ate \\(\\dfrac{3}{10}\\) of a pizza. His sister ate \\(\\dfrac{1}{5}\\) of the same pizza. How much more pizza did Gopal eat than his sister?",
  "answer0": "\\(\\dfrac{1}{10}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{9}{10}\\)",
  "answer3": "\\(\\dfrac{1}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS Primary 2023 P3 Weighted Assessment Q46",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Gopal ate \\(\\dfrac{3}{10}\\) of a pizza. His sister ate \\(\\dfrac{1}{5}\\) of the same pizza. Gopal ate another \\(\\dfrac{2}{5}\\) of the pizza. What fraction of the pizza did he eat in total?",
  "answer0": "\\(\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{6}{10}\\)",
  "answer3": "\\(\\dfrac{3}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Ai Tong 2025 P3 Weighted Assessment 3 Q1",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{2}{9}\\) + \\(\\dfrac{2}{3}\\)",
  "answer0": "\\(\\dfrac{8}{9}\\)",
  "answer1": "\\(\\dfrac{4}{12}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "1",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Ai Tong 2025 P3 Weighted Assessment 3 Q2",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{2}\\) - \\(\\dfrac{3}{8}\\)",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{2}{6}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{2}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Ai Tong 2025 P3 Weighted Assessment 3 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In the number line, P represents \\(\\dfrac{1}{5}\\) and R represents \\(\\dfrac{1}{3}\\). PQ = QR. What fraction is represented by Q?",
  "answer0": "\\(\\dfrac{7}{15}\\)",
  "answer1": "\\(\\dfrac{8}{15}\\)",
  "answer2": "\\(\\dfrac{6}{15}\\)",
  "answer3": "\\(\\dfrac{7}{16}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Ai Tong 2025 P3 Weighted Assessment 3 Q11",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 3 squares. One of the squares is divided into 4 equal parts. What fraction of the figure is shaded? Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Catholic High 2022 P3 Semestral Assessment 2 Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{6}{10}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "1",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Catholic High 2022 P3 Semestral Assessment 2 Q24",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The number line is marked at equal intervals. What is the missing fraction indicated by the arrow on the number line?",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Catholic High 2022 P3 Semestral Assessment 2 Q25",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{1}{12}\\) + \\(\\dfrac{3}{4}\\)",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{4}{6}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Catholic High 2023 P3 End of Year Exam Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{6}{9}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Catholic High 2024 P3 End of Year Exam Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{12}\\) + \\(\\dfrac{2}{3}\\). Express your answer as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "\\(\\dfrac{3}{15}\\)",
  "answer2": "\\(\\dfrac{7}{12}\\)",
  "answer3": "\\(\\dfrac{3}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "CHIJ 2022 P3 Semestral Assessment 2 Q22",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{1}{3}\\) + \\(\\dfrac{3}{9}\\) = Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "CHIJ 2022 P3 Semestral Assessment 2 Q28",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Look at the number line. What is the missing fraction?",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{4}{6}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2022 P3 Semestral Assessment 2 Q15",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{5}\\) + \\(\\dfrac{3}{10}\\) . Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "\\(\\dfrac{4}{15}\\)",
  "answer2": "\\(\\dfrac{1}{10}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2022 P3 Weighted Assessment 2 Q2",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{4}{5}\\) - \\(\\dfrac{2}{10}\\). Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "1",
  "answer3": "\\(\\dfrac{2}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2022 P3 Weighted Assessment 2 Q4",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Eric ate \\(\\dfrac{1}{3}\\) of a cake and Fred ate \\(\\dfrac{1}{9}\\) of the same cake. What fraction of the cake did they eat altogether?",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2024 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract \\(\\dfrac{1}{12}\\) from \\(\\dfrac{3}{4}\\). Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2024 P3 Weighted Assessment 2 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Square ABCD is made up of 4 identical smaller squares. 2 of the smaller squares are cut into equal parts. What fraction of the square ABCD is shaded?",
  "answer0": "\\(\\dfrac{7}{16}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{6}{16}\\)",
  "answer3": "\\(\\dfrac{9}{16}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2025 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 16 identical triangles.\nWhat fraction of the figure is shaded? Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Henry Park 2025 P3 Weighted Assessment 2 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Siti spent \\(\\dfrac{1}{5}\\) of her money on a cake and some of her money on a cookie. After buying both items, she had \\(\\dfrac{3}{10}\\) of her money left. What fraction of her money did she spend on the cookie? Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2023 P3 End of Year Exam Q21",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{42}{48}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{8}\\)",
  "answer3": "\\(\\dfrac{3}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2023 P3 End of Year Exam Q27",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box?\n\\(\\dfrac{1}{9}\\) + = \\(\\dfrac{2}{3}\\)",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2023 P3 Weighted Assessment 1 and 2 WA2 Q11",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Add \\(\\dfrac{3}{10}\\) and \\(\\dfrac{1}{5}\\). Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2023 P3 Weighted Assessment 1 and 2 WA2 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box? \\(\\dfrac{3}{4}\\) - = \\(\\dfrac{7}{12}\\)",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{5}{6}\\)",
  "answer3": "\\(\\dfrac{1}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2024 P3 End of Year Exam Q18",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box?\n\\(\\dfrac{1}{2}\\) - = \\(\\dfrac{1}{5}\\)",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{14}{20}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{3}{10}\\)",
  "answer3": "\\(\\dfrac{3}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2024 P3 Weighted Assessment 2 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of equal rectangles.\nWhat fraction of the figure is not shaded?\nLeave your answer in the simplest form.",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2025 P3 End of Year Exam Q18",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ali and Tom shared a rectangular cake. Ali ate \\(\\dfrac{1}{12}\\) of the cake and Tom ate \\(\\dfrac{1}{6}\\) of it. What fraction of the cake did they eat altogether? Express the answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2025 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(\\dfrac{14}{42}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "1",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2025 P3 Weighted Assessment 2 Q11",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Amber ate \\(\\dfrac{1}{8}\\) of a pizza and Danny ate \\(\\dfrac{1}{4}\\) of the same pizza. What fraction of the pizza was left?",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Maha Bodhi 2025 P3 Weighted Assessment 2 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box? + \\(\\dfrac{1}{10}\\) = \\(\\dfrac{2}{5}\\)",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Methodist Girls 2022 P3 Semestral Assessment 2 Q25",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{7}{12}\\) - \\(\\dfrac{1}{3}\\) . Write your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{6}{9}\\)",
  "answer2": "\\(\\dfrac{11}{12}\\)",
  "answer3": "\\(\\dfrac{6}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Methodist Girls 2023 P3 End of Year Exam Q23",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the difference between \\(\\dfrac{5}{12}\\) and \\(\\dfrac{1}{6}\\)?\nGive your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Methodist Girls 2023 P3 Weighted Assessment WA3 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is 1 - \\(\\dfrac{6}{10}\\)? Write your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Methodist Girls 2023 P3 Weighted Assessment WA3 Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction is greater than \\(\\dfrac{2}{3}\\) and less than \\(\\dfrac{8}{9}\\)?",
  "answer0": "\\(\\dfrac{7}{9}\\)",
  "answer1": "\\(\\dfrac{8}{9}\\)",
  "answer2": "\\(\\dfrac{6}{9}\\)",
  "answer3": "\\(\\dfrac{2}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Methodist Girls 2024 P3 End of Year Exam Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box?",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "MGS Paya Lebar 2024 P3 End of Year Exam Q22",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Larry and Megan shared a piece of ribbon. Larry used \\(\\dfrac{1}{4}\\) of the ribbon. Megan used \\(\\dfrac{5}{12}\\) of the same ribbon. What fraction of the piece of ribbon did they use altogether? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nan Hua 2022 P3 Semestral Assessment 2 Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{3}\\) − \\(\\dfrac{1}{6}\\).",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nan Hua 2024 P3 Term 4 Review Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{3}\\) − \\(\\dfrac{1}{6}\\).",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nan Hua 2025 P3 End of Year Exam Q13",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{7}{12}\\) - \\(\\dfrac{1}{4}\\)",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{6}{8}\\)",
  "answer2": "\\(\\dfrac{5}{6}\\)",
  "answer3": "\\(\\dfrac{6}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nan Hua 2025 P3 End of Year Exam Q15",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the figure is unshaded? Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Northland 2025 P3 End of Year Exam Q17",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{2}\\) + \\(\\dfrac{3}{8}\\)",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "\\(\\dfrac{4}{10}\\)",
  "answer2": "\\(\\dfrac{1}{8}\\)",
  "answer3": "\\(\\dfrac{4}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nanyang 2022 P3 Semestral Assessment 2 Q29",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the figure is shaded? Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nanyang 2024 P3 End of Year Exam Q7",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{14}{35}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{4}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nanyang 2024 P3 End of Year Exam Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Look at the number lines. Find the difference between B and A.",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nanyang 2025 P3 End of Year Exam Q7",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{2}{6}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "1",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Nanyang 2025 P3 End of Year Exam Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Look at the number lines. A is marked on the first number line (0 to 1) and B is marked on the second number line (0 to 1).\nFind the sum of A and B.",
  "answer0": "\\(\\dfrac{11}{12}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{10}{12}\\)",
  "answer3": "\\(\\dfrac{1}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Chun 2022 P3 Semestral Assessment 2 Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the figure is shaded?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Chun 2023 P3 End of Year Exam Q13",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{9}{12}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Chun 2023 P3 End of Year Exam Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{3}\\) + \\(\\dfrac{2}{6}\\). Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "\\(\\dfrac{3}{9}\\)",
  "answer2": "\\(\\dfrac{3}{6}\\)",
  "answer3": "1",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2022 P3 Practice Paper 3 Q17",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{2}\\) + \\(\\dfrac{3}{10}\\). Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{4}{5}\\)",
  "answer1": "\\(\\dfrac{4}{12}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2022 P3 Semestral Assessment 2 Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the difference between \\(\\dfrac{1}{3}\\) and \\(\\dfrac{5}{6}\\).",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2022 P3 Weighted Assessment 2 Q11",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{6}{10}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "1",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2022 P3 Weighted Assessment 2 Q14",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Give a possible fraction that is smaller than \\(\\dfrac{1}{5}\\).",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{5}{6}\\)",
  "answer3": "\\(\\dfrac{1}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2023 P3 End of Year Exam Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of \\(\\dfrac{1}{2}\\) and \\(\\dfrac{1}{6}\\). Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{9}{12}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The following figure is made up of 4 identical squares. What fraction of the figure is not shaded?",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{2}{4}\\)",
  "answer3": "\\(\\dfrac{1}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2023 P3 Weighted Assessment WA3 Q14",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of A and B.",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2024 P3 Weighted Assessment 3 Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In the number line, what is the fraction represented by X?",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{4}{6}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Pei Hwa 2024 P3 Weighted Assessment 3 Q12",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{5}{8}\\) - \\(\\dfrac{1}{2}\\)",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2022 P3 Semestral Assessment 2 Q21",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{18}{24}\\) as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2022 P3 Semestral Assessment 2 Q42",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 3 identical rectangles and 1 square. The perimeter of the square is 36 cm. The length of one rectangle is 4 cm longer than its breadth. Find the area of the shaded rectangle.",
  "answer0": "\\(3\\dfrac{1}{2}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{6}{2}\\)",
  "answer3": "\\(\\dfrac{7}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2023 P3 End of Year Exam Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{10}{15}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2023 P3 Weighted Assessment 1 and 2 WA2 Q6",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{8}{10}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{4}{5}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{3}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2023 P3 Weighted Assessment 1 and 2 WA2 Q7",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the difference between \\(\\dfrac{11}{12}\\) and \\(\\dfrac{5}{6}\\).",
  "answer0": "\\(\\dfrac{1}{12}\\)",
  "answer1": "\\(\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{11}{12}\\)",
  "answer3": "\\(\\dfrac{1}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2024 P3 End of Year Exam Q21",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{18}{24}\\) as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2024 P3 End of Year Exam Q42",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 3 identical rectangles and 1 square. The perimeter of the square is 36 cm. The length of one rectangle is 4 cm longer than its breadth. Find the area of the shaded rectangle.",
  "answer0": "\\(3\\dfrac{1}{2}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{6}{2}\\)",
  "answer3": "\\(\\dfrac{7}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2025 P3 End of Year Exam Q13",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the fraction represented by A on the number line?",
  "answer0": "\\(\\dfrac{4}{7}\\)",
  "answer1": "\\(\\dfrac{5}{7}\\)",
  "answer2": "\\(\\dfrac{3}{7}\\)",
  "answer3": "\\(\\dfrac{4}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2025 P3 End of Year Exam Q14",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of \\(\\dfrac{2}{4}\\) and \\(\\dfrac{3}{8}\\)",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Raffles Girls 2025 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of \\(\\dfrac{1}{5}\\) and \\(\\dfrac{3}{10}\\). Leave your answer in its simplest form. Answer:",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2022 P3 Semestral Assessment 2 Q31",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 6 identical rectangles. What fraction of the figure is shaded? Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2022 P3 Weighted Assessment 2 Q8",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{9}{12}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2022 P3 Weighted Assessment 2 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the figure is shaded? Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2022 P3 Weighted Assessment 2 Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{6}{10}\\) - \\(\\dfrac{1}{5}\\). Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{5}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2022 P3 Weighted Assessment 2 Q11",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{3}\\) + \\(\\dfrac{1}{12}\\). Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{2}{15}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{2}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2023 P3 End of Year Exam Q27",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "3 children shared a bar of chocolate. Edwin ate \\(\\dfrac{5}{12}\\) of it, Rayner ate \\(\\dfrac{1}{4}\\) of it and Vincent ate the rest. What fraction of the chocolate did Vincent eat? Leave your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2023 P3 Weighted Assessment 1 and 2 Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is divided into equal parts. What fraction of the figure is shaded?",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2023 P3 Weighted Assessment 1 and 2 Q24",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{6}\\) + \\(\\dfrac{4}{6}\\) .",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "\\(\\dfrac{5}{12}\\)",
  "answer2": "\\(\\dfrac{1}{2}\\)",
  "answer3": "1",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2023 P3 Weighted Assessment 1 and 2 Q30",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{9}{10}\\) - \\(\\dfrac{2}{5}\\) . Write the answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "\\(\\dfrac{7}{5}\\)",
  "answer2": "\\(1\\dfrac{3}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q31",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{4}{8}\\)",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q32",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{6}{9}\\)",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q33",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{8}{12}\\)",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q34",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{10}{12}\\)",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{4}{6}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q35",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{6}{15}\\)",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q36",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write each fraction in its simplest form. \\(\\dfrac{9}{12}\\)",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{2}{4}\\)",
  "answer3": "\\(\\dfrac{1}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q40",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Add the fractions. Express the answer in its simplest form. \\(\\dfrac{3}{12}\\) + \\(\\dfrac{2}{6}\\)",
  "answer0": "\\(\\dfrac{7}{12}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{6}{12}\\)",
  "answer3": "\\(\\dfrac{5}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q41",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Add the fractions. Express the answer in its simplest form. \\(\\dfrac{1}{4}\\) + \\(\\dfrac{2}{8}\\)",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q42",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract the fractions. Express the answer in its simplest form. \\(\\dfrac{8}{9}\\) - \\(\\dfrac{1}{3}\\)",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Term 2 Review Q43",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract the fractions. Express the answer in its simplest form. \\(\\dfrac{3}{4}\\) - \\(\\dfrac{5}{12}\\)",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Rosyth 2024 P3 Weighted Assessment 1 Q9",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{7}{10}\\) - \\(\\dfrac{1}{2}\\). Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{6}{8}\\)",
  "answer2": "\\(1\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{6}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Red Swastika 2022 P3 Semestral Assessment 2 Q38",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In the number line, A represents \\(\\dfrac{4}{9}\\), C represents \\(\\dfrac{2}{3}\\) and B is exactly between A and C. What fraction does B represent?",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Red Swastika 2022 P3 Semestral Assessment 2 Q39",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the difference between the smallest and greatest fractions.\n\\(\\dfrac{3}{4}\\), \\(\\dfrac{1}{2}\\), \\(\\dfrac{7}{8}\\)",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Red Swastika 2022 P3 Semestral Assessment 2 Q40",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mother bought a pizza and sliced it into 12 equal pieces for a party. Iris took 3 pieces of the pizza. What fraction of the pizza did Iris take? Express your answer as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Red Swastika 2022 P3 Weighted Assessment 1 Q39",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Which of the following fractions is smaller than \\(\\dfrac{1}{3}\\)? \\(\\dfrac{2}{9}\\), \\(\\dfrac{1}{2}\\), \\(\\dfrac{5}{6}\\) Ans:",
  "answer0": "\\(\\dfrac{2}{9}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{1}{9}\\)",
  "answer3": "\\(\\dfrac{7}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Red Swastika 2024 P3 Revision Q39",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Which of the following fractions is smaller than \\(\\dfrac{1}{3}\\)? \\(\\dfrac{2}{9}\\), \\(\\dfrac{1}{2}\\), \\(\\dfrac{5}{6}\\)",
  "answer0": "\\(\\dfrac{2}{9}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{1}{9}\\)",
  "answer3": "\\(\\dfrac{7}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "SCGS 2023 P3 End of Year Exam Q14",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{1}{2}\\) + \\(\\dfrac{4}{10}\\)",
  "answer0": "\\(\\dfrac{9}{10}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{8}{10}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "SCGS 2023 P3 End of Year Exam Q17",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Jennifer gave away \\(\\dfrac{1}{2}\\) of a cake and ate \\(\\dfrac{1}{3}\\) of it. What fraction of the cake was left?",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{5}{6}\\)",
  "answer3": "\\(\\dfrac{1}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "St Joseph 2023 P3 End of Year Exam Q36",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ethan spent \\(\\dfrac{1}{3}\\) of his money on food. He spent \\(\\dfrac{1}{6}\\) of it on magazines and \\(\\dfrac{1}{4}\\) of it on shoes. What fraction of his money was left? Express your answer in its simplest form. Ans:",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "St Nicholas 2023 P3 End of Year Exam Q20",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{1}{4}\\) + \\(\\dfrac{5}{8}\\)",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "St Nicholas 2024 P3 End of Year Exam Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is \\(\\dfrac{3}{4}\\) - \\(\\dfrac{5}{8}\\) ?",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{2}{4}\\)",
  "answer2": "\\(1\\dfrac{3}{8}\\)",
  "answer3": "\\(\\dfrac{2}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2022 P3 Semestral Assessment 2 Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{4}{5}\\) - \\(\\dfrac{3}{10}\\) = Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2022 P3 Weighted Assessment 2 Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the missing fraction in the box. \\(\\dfrac{1}{12}\\), \\(\\dfrac{1}{4}\\), \\(\\dfrac{5}{12}\\), , \\(\\dfrac{3}{4}\\) Ans:",
  "answer0": "\\(\\dfrac{7}{12}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{6}{12}\\)",
  "answer3": "\\(\\dfrac{5}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2023 P3 End of Year Exam Q15",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The diagram shows \\(\\dfrac{1}{4}\\) of the bar shaded. What fraction of the bar must be further shaded, so that \\(\\dfrac{5}{8}\\) of the bar is shaded altogether ? Express the answer in its simplest form.",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2023 P3 End of Year Exam Q19",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Uncle Daniel bought an apple pie and cut it into 12 pieces. He gave \\(\\dfrac{1}{4}\\) of the pie to his niece and 4 pieces to his neighbour. What fraction of the pie was left ? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2023 P3 Weighted Assessment Q1",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write in its simplest form.\n\\(\\dfrac{8}{56}\\)",
  "answer0": "\\(\\dfrac{1}{7}\\)",
  "answer1": "\\(\\dfrac{2}{7}\\)",
  "answer2": "\\(\\dfrac{6}{7}\\)",
  "answer3": "\\(\\dfrac{3}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2023 P3 Weighted Assessment Q13",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Susan painted \\(\\dfrac{1}{3}\\) of the wall green and \\(\\dfrac{1}{6}\\) of the same wall yellow. What fraction of the wall was painted? Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2024 P3 End of Year Exam Q15",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{7}{10}\\) - \\(\\dfrac{2}{5}\\)",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2024 P3 Revision Q16",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{4}{5}\\) − \\(\\dfrac{3}{10}\\) = Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2024 P3 Weighted Assessment 2 Q10",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the missing fraction in the box.\n\\(\\dfrac{1}{12}\\), \\(\\dfrac{1}{4}\\), \\(\\dfrac{5}{12}\\), , \\(\\dfrac{3}{4}\\)",
  "answer0": "\\(\\dfrac{7}{12}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{6}{12}\\)",
  "answer3": "\\(\\dfrac{5}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "Tao Nan 2025 P3 End of Year Exam Q13",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of identical rectangles. What fraction of the figure is shaded?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P3"
 },
 {
  "source": "ACS 2022 P4 Semestral Assessment 2 Q21",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(\\dfrac{45}{7}\\) as a mixed number.",
  "answer0": "\\(6\\dfrac{3}{7}\\)",
  "answer1": "\\(6\\dfrac{4}{7}\\)",
  "answer2": "\\(\\dfrac{44}{7}\\)",
  "answer3": "\\(\\dfrac{45}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2022 P4 Semestral Assessment 2 Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the students in Primary 4M are in the basketball CCA? (Give your answer in the simplest form.)",
  "answer0": "\\(\\dfrac{3}{14}\\)",
  "answer1": "\\(\\dfrac{2}{7}\\)",
  "answer2": "\\(\\dfrac{2}{14}\\)",
  "answer3": "\\(\\dfrac{11}{14}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2024 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{8}+\\frac{3}{4}$$?<br>Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{3}{8}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{10}{8}\\)",
  "answer3": "\\(\\dfrac{11}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2024 P4 End-of-Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the muffins sold on Sunday was chocolate?<br>Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{15}{26}\\)",
  "answer1": "\\(\\dfrac{8}{13}\\)",
  "answer2": "\\(\\dfrac{14}{26}\\)",
  "answer3": "\\(\\dfrac{11}{26}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2024 P4 End-of-Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$5-\\frac{7}{11}$$?<br>Express your answer as an improper fraction.",
  "answer0": "\\(4\\dfrac{4}{11}\\)",
  "answer1": "\\(4\\dfrac{5}{11}\\)",
  "answer2": "\\(\\dfrac{47}{11}\\)",
  "answer3": "\\(\\dfrac{48}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2025 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the triangles shown are grey in colour?",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2025 P4 End-of-Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mary poured $$\\frac{1}{3}$$ $$l$$ of juice from a jug for Peter and $$\\frac{1}{9}$$ $$l$$ of juice for Tom. There was $$\\frac{7}{9}$$ $$l$$ of juice left in the jug. How much juice was in the jug at first? Express your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{2}{9}\\)",
  "answer1": "\\(1\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{10}{9}\\)",
  "answer3": "\\(\\dfrac{11}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2025 P4 End-of-Year Exam Q40",
  "fix_types": [
   "dollar_math",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Aini had 6 ten-dollar notes and 3 five-dollar notes. She spent \\$18.65 on food, \\$6.35 on a notebook and saved the rest of the money. What fraction of her money did she save? Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS 2025 P4 Weighted Assessment 2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{3}{5} + \\frac{5}{8}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{9}{40}\\)",
  "answer1": "\\(1\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{48}{40}\\)",
  "answer3": "\\(\\dfrac{49}{41}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS Junior 2023 P4 End of Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{4}{5}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{4}{5}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{18}{5}\\)",
  "answer3": "\\(\\dfrac{19}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS Primary 2022 P4 Semestral Assessment 1 Q18",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of 3 - \\(\\dfrac{3}{8}\\).",
  "answer0": "\\(2\\dfrac{5}{8}\\)",
  "answer1": "\\(2\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{20}{8}\\)",
  "answer3": "\\(\\dfrac{21}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS Primary 2022 P4 Semestral Assessment 1 Q20",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(\\dfrac{17}{6}\\) as a mixed number.",
  "answer0": "\\(2\\dfrac{5}{6}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{16}{6}\\)",
  "answer3": "\\(\\dfrac{17}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "ACS Primary 2022 P4 Semestral Assessment 1 Q37",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Charles walked \\(\\dfrac{3}{4}\\) km to reach his home. Steve walked \\(\\dfrac{1}{3}\\) km further to reach his home. What was the total distance both boys walked? (Leave your answer as a fraction)",
  "answer0": "\\(1\\dfrac{5}{6}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{10}{6}\\)",
  "answer3": "\\(\\dfrac{11}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Ai Tong 2024 P4 Term 1 Review Q10",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{11}{12}-\\frac{1}{4}$$.<br>Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2022 P4 Semestral Assessment 2 Q23",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{2}{9}\\) + \\(\\dfrac{1}{3}\\)",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{3}{12}\\)",
  "answer2": "\\(\\dfrac{1}{9}\\)",
  "answer3": "\\(\\dfrac{3}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2022 P4 Semestral Assessment 2 Q24",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of 1 - \\(\\dfrac{1}{2}\\) - \\(\\dfrac{1}{8}\\).",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2022 P4 Semestral Assessment 2 Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.93 as a fraction.",
  "answer0": "\\(\\dfrac{93}{100}\\)",
  "answer1": "\\(\\dfrac{47}{50}\\)",
  "answer2": "\\(\\dfrac{92}{100}\\)",
  "answer3": "\\(\\dfrac{7}{100}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2023 P4 End of Year Exam Q31",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Eunice bought $$\\frac{3}{5}$$ m of ribbon to tie a present. Sarah bought $$\\frac{1}{2}$$ m more ribbon than Eunice to make bows. How much ribbon did they buy altogether?<br> $$m$$",
  "answer0": "\\(1\\dfrac{7}{10}\\)",
  "answer1": "\\(1\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{16}{10}\\)",
  "answer3": "\\(\\dfrac{17}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2023 P4 End of Year Exam Q42",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Julian read $$\\frac{2}{9}$$ of a book on Monday and $$\\frac{2}{3}$$ of the book on Tuesday. He read the remaining pages of the book on Wednesday. He read 76 more pages on Tuesday than on Monday. What fraction of the book did he read on Wednesday?",
  "answer0": "\\(\\dfrac{1}{9}\\)",
  "answer1": "\\(\\dfrac{2}{9}\\)",
  "answer2": "\\(\\dfrac{8}{9}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2023 P4 Weighted Assessment 3 Q5",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What mixed number does the letter A represent on the number line? Give your answer in the simplest form.",
  "answer0": "\\(2\\dfrac{3}{4}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{10}{4}\\)",
  "answer3": "\\(\\dfrac{11}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2023 P4 Weighted Assessment 3 Q9",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Andy and Ben drank a total of $$\\frac{4}{5}$$ $$l$$ of juice. Andy drank $$\\frac{1}{2}$$ $$l$$ of the juice. How much more juice did Andy drink than Ben?",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2024 P4 Weighted Assessment 3 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the missing mixed number in the number line.",
  "answer0": "\\(3\\dfrac{5}{6}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{22}{6}\\)",
  "answer3": "\\(\\dfrac{23}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2025 P4 End-of-Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{4}{5}+\\frac{9}{10}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{7}{10}\\)",
  "answer1": "\\(1\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{16}{10}\\)",
  "answer3": "\\(\\dfrac{17}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2025 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{3}{7}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{3}{7}\\)",
  "answer1": "\\(3\\dfrac{4}{7}\\)",
  "answer2": "\\(\\dfrac{23}{7}\\)",
  "answer3": "\\(\\dfrac{24}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Catholic High 2025 P4 Weighted Assessment 3 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In a class of 40, the pupils participated in different Co-Curricular Activities. Each pupil only participated in 1 Co-Curricular Activity. The pie chart shows their participation. What fraction of the pupils in the class participated in Choir?",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "CHIJ 2022 P4 Semestral Assessment 2 Q16",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{5}{6}\\) + \\(\\dfrac{1}{3}\\) ? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{6}{9}\\)",
  "answer2": "\\(\\dfrac{1}{2}\\)",
  "answer3": "\\(\\dfrac{6}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 1 Q15",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{27}{6}\\) as a mixed number in its simplest form.",
  "answer0": "\\(4\\dfrac{1}{2}\\)",
  "answer1": "5",
  "answer2": "4",
  "answer3": "\\(5\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 1 Q17",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of \\(\\dfrac{1}{5}\\) + \\(\\dfrac{7}{10}\\) + \\(\\dfrac{2}{5}\\). Express your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{3}{10}\\)",
  "answer1": "\\(1\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{12}{10}\\)",
  "answer3": "\\(\\dfrac{13}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 1 Q25",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Devi bought 3 m of ribbon. She used \\(\\dfrac{2}{7}\\) m of the ribbon to decorate some presents. How many metres of ribbon did she have left? Express your answer as a mixed number.",
  "answer0": "\\(2\\dfrac{5}{7}\\)",
  "answer1": "\\(2\\dfrac{6}{7}\\)",
  "answer2": "\\(\\dfrac{18}{7}\\)",
  "answer3": "\\(\\dfrac{19}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 2 Q14",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{10}{12}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{5}{6}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{6}\\)",
  "answer3": "\\(\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 2 Q15",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(2\\dfrac{3}{4}\\) as an improper fraction.",
  "answer0": "\\(2\\dfrac{3}{4}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{10}{4}\\)",
  "answer3": "\\(\\dfrac{11}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Semestral Assessment 2 Q16",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{3}{5}\\) + \\(\\dfrac{3}{7}\\) ? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{35}\\)",
  "answer1": "\\(\\dfrac{6}{12}\\)",
  "answer2": "\\(\\dfrac{6}{35}\\)",
  "answer3": "\\(\\dfrac{6}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2022 P4 Weighted Assessment 1 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express your answer as a mixed number in its simplest form.<br>$$\\frac{5}{6}$$ + $$\\frac{2}{3}$$",
  "answer0": "\\(1\\dfrac{1}{2}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{2}{2}\\)",
  "answer3": "\\(2\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2023 P4 End of Year Exam Q15",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{1}{3}$$ + $$\\frac{1}{12}$$",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2023 P4 End of Year Exam Q16",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of 1 - $$\\frac{3}{5}$$ - $$\\frac{1}{10}$$ .",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 End-of-Year Exam Q14",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{14}{21}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 End-of-Year Exam Q15",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$4\\frac{2}{5}$$ as an improper fraction.",
  "answer0": "\\(4\\dfrac{2}{5}\\)",
  "answer1": "\\(4\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{21}{5}\\)",
  "answer3": "\\(\\dfrac{22}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 End-of-Year Exam Q16",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$2-\\frac{1}{2}-\\frac{1}{8}$$",
  "answer0": "\\(1\\dfrac{3}{8}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{10}{8}\\)",
  "answer3": "\\(\\dfrac{11}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 Term 1 Review Q4",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{2}{3}$$ - $$\\frac{1}{6}$$<br>Give your answer as a fraction in the simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 Term 1 Review Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Andy placed identical rectangular tiles in a large rectangular frame. What fraction of the frame is not covered by rectangular tiles? Express your answer as a fraction in the simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 Weighted Assessment 1 Revision Q3",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{60}{9}$$ as a mixed number in its simplest form.",
  "answer0": "\\(6\\dfrac{2}{3}\\)",
  "answer1": "7",
  "answer2": "\\(\\dfrac{19}{3}\\)",
  "answer3": "\\(\\dfrac{20}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2024 P4 Weighted Assessment 1 Revision Q4",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the figure is shaded? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{2}{4}\\)",
  "answer3": "\\(\\dfrac{1}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2025 P4 End-of-Year Exam Q16",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{2}{3}$$ + $$\\frac{2}{9}$$",
  "answer0": "\\(\\dfrac{8}{9}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{7}{9}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2025 P4 End-of-Year Exam Q33",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{4}{7}$$ kg of flour is needed to bake 6 buns. Melvin has 3 kg of flour and he baked 12 buns. How much flour does he have left?<br> kg",
  "answer0": "\\(1\\dfrac{6}{7}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{12}{7}\\)",
  "answer3": "\\(\\dfrac{13}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Henry Park 2025 P4 Weighted Assessment 1 Q11",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mr Lee bought $$\\frac{1}{4}$$ kg of rice. He bought $$\\frac{2}{5}$$ kg more flour than rice. How many kilograms of rice and flour did Mr Lee buy altogether? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{9}{10}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{8}{10}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2022 P4 Semestral Assessment 1 Q25",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the mixed number that is exactly halfway between \\(\\dfrac{11}{7}\\) and \\(\\dfrac{13}{7}\\)?",
  "answer0": "\\(1\\dfrac{5}{7}\\)",
  "answer1": "\\(1\\dfrac{6}{7}\\)",
  "answer2": "\\(\\dfrac{11}{7}\\)",
  "answer3": "\\(\\dfrac{12}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2022 P4 Semestral Assessment 1 Q33",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the missing fraction in the box? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{12}\\)",
  "answer1": "\\(\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{11}{12}\\)",
  "answer3": "\\(\\dfrac{1}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2022 P4 Semestral Assessment 1 Q38",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "A jug contained some juice. Mother added \\(\\dfrac{3}{5}\\) l of juice into the jug. Xavier drank \\(\\dfrac{1}{2}\\) l of the juice from the jug. There was \\(\\dfrac{4}{5}\\) l of juice left in the jug in the end. How much juice was there in the jug at first?",
  "answer0": "\\(\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{6}{10}\\)",
  "answer3": "\\(\\dfrac{3}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2022 P4 Semestral Assessment 2 Q37",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The bracelet shows the number of beads left after the string broke. Six black beads went missing. What fraction of the beads went missing? Write your answer in the simplest form.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2022 P4 Semestral Assessment 2 Q42",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mary used some ribbons to complete an art work. She used \\(\\dfrac{1}{4}\\) m of the ribbon on the first day. She used \\(\\dfrac{5}{8}\\) m more ribbon on the second day than on the first day. Find the total length of ribbon she used on the two days. Express your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{1}{8}\\)",
  "answer1": "\\(1\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{8}{8}\\)",
  "answer3": "\\(1\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2023 P4 Weighted Assessment 2 Q9",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{7}{12} - \\frac{1}{6}$$. Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2024 P4 End-of-Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{4}{5}$$ + $$\\frac{3}{10}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{10}\\)",
  "answer1": "\\(1\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{10}{10}\\)",
  "answer3": "\\(1\\dfrac{3}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2024 P4 Weighted Assessment 2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of $$\\frac{9}{10}$$ and $$\\frac{4}{5}$$. Express your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{7}{10}\\)",
  "answer1": "\\(1\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{16}{10}\\)",
  "answer3": "\\(\\dfrac{17}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2024 P4 Weighted Assessment 2 Q12",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Annie and Betty had $$\\frac{1}{2}$$ m of cloth. Betty and Cathy had $$\\frac{3}{4}$$ m of cloth. Annie, Betty and Cathy had $$\\frac{4}{5}$$ m of cloth altogether. How much cloth did Betty have? Express your answer in its simplest form.<br> m",
  "answer0": "\\(\\dfrac{9}{20}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{8}{20}\\)",
  "answer3": "\\(\\dfrac{11}{20}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2025 P4 End-of-Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6}$$ − $$\\frac{2}{3}$$ ?",
  "answer0": "\\(\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{5}{6}\\)",
  "answer3": "\\(\\dfrac{1}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2025 P4 Weighted Assessment 2 Q6",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the mixed number represented by the letter A on the number line?",
  "answer0": "\\(3\\dfrac{4}{5}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{18}{5}\\)",
  "answer3": "\\(\\dfrac{19}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maha Bodhi 2025 P4 Weighted Assessment 2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{1}{3} + \\frac{1}{9}$$.",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Methodist Girls 2022 P4 Semestral Assessment 2 Q18",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(\\dfrac{17}{4}\\) as a mixed number.",
  "answer0": "\\(4\\dfrac{1}{4}\\)",
  "answer1": "\\(4\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{16}{4}\\)",
  "answer3": "\\(\\dfrac{17}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Methodist Girls 2022 P4 Semestral Assessment 2 Q22",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "\\(\\dfrac{3}{5}\\) − \\(\\dfrac{2}{10}\\)",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Methodist Girls 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.6 as a fraction.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "\\(\\dfrac{3}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Methodist Girls 2023 P4 End of Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{8} + \\frac{3}{4}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{3}{8}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{10}{8}\\)",
  "answer3": "\\(\\dfrac{11}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "MGS 2024 P4 End-of-Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6}$$ + $$\\frac{7}{12}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{5}{12}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{16}{12}\\)",
  "answer3": "\\(\\dfrac{17}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "MGS 2024 P4 End-of-Year Exam Q37",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mrs Lee bought 2 m of cloth. She gave $$\\frac{2}{5}$$ m of the cloth to Mrs Lim and $$\\frac{1}{4}$$ m of the cloth to Mrs Teo. What was the length of cloth Mrs Lee had left?",
  "answer0": "\\(1\\dfrac{7}{20}\\)",
  "answer1": "\\(1\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{26}{20}\\)",
  "answer3": "\\(\\dfrac{27}{21}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "MGS 2024 P4 Weighted Assessment 2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the mixed number represented by the letter A in the number line?",
  "answer0": "\\(2\\dfrac{3}{4}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{10}{4}\\)",
  "answer3": "\\(\\dfrac{11}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maris Stella 2022 P4 Semestral Assessment 2 Q27",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{11}{12}\\) + \\(\\dfrac{1}{4}\\)? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{12}{16}\\)",
  "answer2": "\\(\\dfrac{2}{3}\\)",
  "answer3": "\\(\\dfrac{12}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Maris Stella 2022 P4 Semestral Assessment 2 Q38",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 16 identical rectangles. What fraction of the figure is shaded? Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Chiau 2025 P4 End-of-Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{1}{4}$$ + $$\\frac{5}{8}$$",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Chiau 2025 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{19}{5}$$ as a mixed number.",
  "answer0": "\\(3\\dfrac{4}{5}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{18}{5}\\)",
  "answer3": "\\(\\dfrac{19}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Chiau 2025 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Jerry bought a box containing 30 grapes. His brother ate 8 of them and his grandparents ate 16 of them. What fraction of the box of grapes had Jerry left? Give your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Chiau 2025 P4 Weighted Assessment 2 Q6",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{1}{2} - \\frac{3}{8} =$$",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2022 P4 Semestral Assessment 2 Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.2 as a fraction.",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2022 P4 Semestral Assessment 2 Q26",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{5}{8}\\) + \\(\\dfrac{3}{4}\\)? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{8}{12}\\)",
  "answer2": "\\(\\dfrac{1}{8}\\)",
  "answer3": "\\(\\dfrac{8}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2022 P4 Semestral Assessment 2 Q41",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Tammy had 1 ℓ of lemonade. She drank \\(\\dfrac{3}{8}\\) ℓ of it and gave her brother \\(\\dfrac{2}{5}\\) ℓ. How much lemonade did Tammy have left?\nAns: ℓ",
  "answer0": "\\(\\dfrac{9}{40}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{8}{40}\\)",
  "answer3": "\\(\\dfrac{31}{40}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the buttons shown are grey in colour?",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2023 P4 End of Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{9}+\\frac{2}{3}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{2}{9}\\)",
  "answer1": "\\(1\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{10}{9}\\)",
  "answer3": "\\(\\dfrac{11}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2024 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{6}{18}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2025 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$1 - \\frac{1}{8} - \\frac{1}{4}$$",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2025 P4 End-of-Year Exam Q34",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mrs Lee bought a papaya and a durian. The mass of the papaya was $$\\frac{9}{10}$$ kg. It was $$\\frac{1}{2}$$ kg lighter than the mass of the durian. What was the mass of the durian? Express your answer as a mixed number in its simplest form.<br> kg",
  "answer0": "\\(1\\dfrac{2}{5}\\)",
  "answer1": "\\(1\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{6}{5}\\)",
  "answer3": "\\(\\dfrac{7}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2025 P4 Weighted Assessment 2 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mdm Siti had 5 $$l$$ of orange juice. She drank $$\\frac{3}{8}$$ $$l$$ of orange juice. How much orange juice did she have left?",
  "answer0": "\\(4\\dfrac{5}{8}\\)",
  "answer1": "\\(4\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{36}{8}\\)",
  "answer3": "\\(\\dfrac{37}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nan Hua 2025 P4 Weighted Assessment 2 Q12",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Alice jogs $$\\frac{3}{4}$$ $$km$$ at a park. She walks $$\\frac{5}{12}$$ $$km$$ less than the distance she jogs. What is the total distance she jogs and walks?",
  "answer0": "\\(1\\dfrac{1}{12}\\)",
  "answer1": "\\(1\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{12}{12}\\)",
  "answer3": "\\(1\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2022 P4 Semestral Assessment 2 Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Square ABCD is made up of 9 unit squares. What fraction of square ABCD is shaded?",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2022 P4 Semestral Assessment 2 Q19",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express \\(\\dfrac{3}{9}\\) in its simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "1",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2022 P4 Semestral Assessment 2 Q33",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Sam had a new book to read. He read \\(\\dfrac{3}{5}\\) of the new book in the morning and \\(\\dfrac{3}{10}\\) of it in the evening. What fraction of the book was left unread?",
  "answer0": "\\(\\dfrac{1}{10}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{9}{10}\\)",
  "answer3": "\\(\\dfrac{1}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 End of Year Exam Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{23}{7}$$ as a mixed number.",
  "answer0": "\\(3\\dfrac{2}{7}\\)",
  "answer1": "\\(3\\dfrac{3}{7}\\)",
  "answer2": "\\(\\dfrac{22}{7}\\)",
  "answer3": "\\(\\dfrac{23}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 End of Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{7}{8} - \\frac{1}{2}$$.",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 End of Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.6 as a fraction.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "\\(\\dfrac{3}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 End of Year Exam Q33",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The difference between two fractions is $$\\frac{2}{9}$$. The smaller fraction is $$\\frac{1}{6}$$. What is the sum of the two fractions? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 Weighted Assessment 1 and 2 WA2 Q6",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mary bought 4 kg of flour. She used $$\\frac{1}{4}$$ kg of flour to make cupcakes and $$\\frac{2}{5}$$ kg of it to make pizza. How much flour was left? Express your answer as a mixed number.",
  "answer0": "\\(3\\dfrac{7}{20}\\)",
  "answer1": "\\(3\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{66}{20}\\)",
  "answer3": "\\(\\dfrac{67}{21}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2023 P4 Weighted Assessment 1 and 2 WA2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ali painted $$\\frac{2}{9}$$ of a wall on Monday and $$\\frac{2}{3}$$ of the same wall on Tuesday. What fraction of the wall was not painted?",
  "answer0": "\\(\\dfrac{1}{9}\\)",
  "answer1": "\\(\\dfrac{2}{9}\\)",
  "answer2": "\\(\\dfrac{8}{9}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2024 P4 End-of-Year Exam Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the triangles shown are black in colour?",
  "answer0": "\\(\\dfrac{5}{14}\\)",
  "answer1": "\\(\\dfrac{3}{7}\\)",
  "answer2": "\\(\\dfrac{4}{14}\\)",
  "answer3": "\\(\\dfrac{9}{14}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2024 P4 End-of-Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{9}{12}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{3}{4}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{2}{4}\\)",
  "answer3": "\\(\\dfrac{1}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2024 P4 End-of-Year Exam Q42",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Cassie and Eli had some orange juice at first. Cassie gave $$\\frac{3}{4}$$ ℓ of orange juice to Dayan. Eli then gave Cassie $$\\frac{5}{8}$$ ℓ of orange juice. Cassie had $$\\frac{9}{10}$$ ℓ of orange juice in the end. How much orange juice did Cassie have at first? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{40}\\)",
  "answer1": "\\(1\\dfrac{1}{20}\\)",
  "answer2": "\\(\\dfrac{40}{40}\\)",
  "answer3": "\\(1\\dfrac{21}{40}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2025 P4 End-of-Year Exam Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{4}{5}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{4}{5}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{18}{5}\\)",
  "answer3": "\\(\\dfrac{19}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2025 P4 End-of-Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{8} + \\frac{3}{4}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{3}{8}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{10}{8}\\)",
  "answer3": "\\(\\dfrac{11}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Nanyang 2025 P4 Weighted Assessment 2 Q7",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ali drank $$\\frac{7}{10}$$ $$\\ell$$ of water. He drank $$\\frac{1}{5}$$ $$\\ell$$ of water more than Harry. How much water did Ali and Harry drink in total? Give your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{5}\\)",
  "answer1": "\\(1\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{5}{5}\\)",
  "answer3": "\\(1\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Chun 2023 P4 End of Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{5}{8}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{5}{8}\\)",
  "answer1": "\\(3\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{28}{8}\\)",
  "answer3": "\\(\\dfrac{29}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Chun 2023 P4 End of Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{7}{9}-\\frac{2}{3}$$.",
  "answer0": "\\(\\dfrac{1}{9}\\)",
  "answer1": "\\(\\dfrac{2}{9}\\)",
  "answer2": "\\(\\dfrac{8}{9}\\)",
  "answer3": "\\(\\dfrac{1}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Chun 2023 P4 End of Year Exam Q32",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mrs Chan had 5 $$l$$ of orange juice. Her daughter drank $$\\frac{3}{5}$$ $$l$$ of it. How much orange juice had Mrs Chan left?",
  "answer0": "\\(4\\dfrac{2}{5}\\)",
  "answer1": "\\(4\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{21}{5}\\)",
  "answer3": "\\(\\dfrac{22}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{1}{8} - \\frac{1}{4}$$.",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 End of Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$2\\frac{3}{7}$$ as an improper fraction.",
  "answer0": "\\(2\\dfrac{3}{7}\\)",
  "answer1": "\\(2\\dfrac{4}{7}\\)",
  "answer2": "\\(\\dfrac{16}{7}\\)",
  "answer3": "\\(\\dfrac{17}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 End of Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.6 as a fraction.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "\\(\\dfrac{3}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 Weighted Assessment 3 Q11",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract $$\\frac{1}{8}$$ from 4.<br>Express your answer as an improper fraction.",
  "answer0": "\\(3\\dfrac{7}{8}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{30}{8}\\)",
  "answer3": "\\(\\dfrac{31}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 Weighted Assessment 3 Q12",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In the number line, what is the mixed number represented by A?",
  "answer0": "\\(2\\dfrac{1}{6}\\)",
  "answer1": "\\(2\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{12}{6}\\)",
  "answer3": "\\(\\dfrac{13}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Pei Hwa 2023 P4 Weighted Assessment 3 Q13",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write a fraction between $$\\frac{1}{3}$$ and $$\\frac{1}{4}$$.",
  "answer0": "\\(\\dfrac{7}{24}\\)",
  "answer1": "\\(\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{6}{24}\\)",
  "answer3": "\\(\\dfrac{17}{24}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2023 P4 End of Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6}+\\frac{2}{3}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{2}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{2}{2}\\)",
  "answer3": "\\(2\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2023 P4 End of Year Exam Q28",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "At a funfair, $$\\frac{5}{12}$$ of the people were children, $$\\frac{1}{3}$$ of the people were men and the rest were women. What fraction of the people were women? Express your answer as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2023 P4 Weighted Assessment 2 Q12",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ray walked $$5\\frac{3}{4}$$ km. He walked $$\\frac{2}{5}$$ km less than John. What was the total distance they had walked? Express your answer in the simplest form. km",
  "answer0": "\\(11\\dfrac{9}{10}\\)",
  "answer1": "12",
  "answer2": "\\(\\dfrac{118}{10}\\)",
  "answer3": "\\(\\dfrac{119}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2024 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6} + \\frac{2}{3}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{2}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{2}{2}\\)",
  "answer3": "\\(2\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2024 P4 End-of-Year Exam Q28",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "At a funfair, $$\\frac{5}{12}$$ of the people were children, $$\\frac{1}{3}$$ of the people were men and the rest were women. What fraction of the people were women? Express your answer as a fraction in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2025 P4 End-of-Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Rectangle PQRS is made up of 8 unit squares. What fraction of rectangle PQRS is shaded?",
  "answer0": "\\(\\dfrac{3}{8}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{2}{8}\\)",
  "answer3": "\\(\\dfrac{5}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2025 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.6 as a fraction.",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "\\(\\dfrac{3}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2025 P4 End-of-Year Exam Q29",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Gladys jogged a distance of $$\\frac{2}{3}$$ km. She jogged $$\\frac{1}{5}$$ km more than the distance jogged by Ben. What was the total distance Gladys and Ben jogged? Give your answer as a mixed number.<br>Ans: km",
  "answer0": "\\(1\\dfrac{2}{15}\\)",
  "answer1": "\\(1\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{16}{15}\\)",
  "answer3": "\\(\\dfrac{17}{16}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "PLMGS 2025 P4 Weighted Assessment 2 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6}+\\frac{2}{3}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{2}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{2}{2}\\)",
  "answer3": "\\(2\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles Girls 2022 P4 Semestral Assessment 2 Q17",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(\\dfrac{46}{7}\\) as a mixed number.",
  "answer0": "\\(6\\dfrac{4}{7}\\)",
  "answer1": "\\(6\\dfrac{5}{7}\\)",
  "answer2": "\\(\\dfrac{45}{7}\\)",
  "answer3": "\\(\\dfrac{46}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles Girls 2022 P4 Semestral Assessment 2 Q20",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{5}{6}\\) + \\(\\dfrac{1}{3}\\)? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(\\dfrac{6}{9}\\)",
  "answer2": "\\(\\dfrac{1}{2}\\)",
  "answer3": "\\(\\dfrac{6}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles Girls 2022 P4 Semestral Assessment 2 Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.7 as a fraction.",
  "answer0": "\\(\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{6}{10}\\)",
  "answer3": "\\(\\dfrac{3}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles Girls 2022 P4 Semestral Assessment 2 Q38",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The figure shows the distances between Towns P, Q, R, S and T. The distance between Town P and Town Q is \\(\\dfrac{1}{6}\\) km shorter than distance between Town Q and Town R. What is the distance between Town P and Town S? (Give your answer as a mixed number in its simplest form.)",
  "answer0": "\\(1\\dfrac{7}{12}\\)",
  "answer1": "\\(1\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{18}{12}\\)",
  "answer3": "\\(\\dfrac{19}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2023 P4 Weighted Assessment 2 Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Eunice used $$\\frac{4}{5}$$ m of ribbon to make a bow tie. She used $$\\frac{1}{2}$$ m less ribbon to tie a present. How much ribbon did she use to tie the present?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 EOY Practice Set 1 Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{5}{6}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{5}{6}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{22}{6}\\)",
  "answer3": "\\(\\dfrac{23}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 EOY Practice Set 1 Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{3}{4}$$ − $$\\frac{5}{8}$$",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 EOY Practice Set 1 Q31",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express the number of household with 1 child as a fraction of the total number of household.",
  "answer0": "\\(\\dfrac{1}{5}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{4}{5}\\)",
  "answer3": "\\(\\dfrac{1}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 EOY Practice Set 2 Q16",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{17}{6}$$ as a mixed number.",
  "answer0": "\\(2\\dfrac{5}{6}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{16}{6}\\)",
  "answer3": "\\(\\dfrac{17}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 EOY Practice Set 2 Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{1}{8} - \\frac{3}{4}$$.",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$4\\frac{2}{3}$$ as an improper fraction.",
  "answer0": "\\(4\\dfrac{2}{3}\\)",
  "answer1": "5",
  "answer2": "\\(\\dfrac{13}{3}\\)",
  "answer3": "\\(\\dfrac{14}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{2}{9}+\\frac{1}{3}=$$",
  "answer0": "\\(\\dfrac{5}{9}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{4}{9}\\)",
  "answer3": "\\(\\dfrac{5}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 Weighted Assessment 2 Q1",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the mixed number represented by A?",
  "answer0": "\\(2\\dfrac{5}{8}\\)",
  "answer1": "\\(2\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{20}{8}\\)",
  "answer3": "\\(\\dfrac{21}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 Weighted Assessment 2 Q3",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract $$\\frac{3}{5}$$ from 7.",
  "answer0": "\\(6\\dfrac{2}{5}\\)",
  "answer1": "\\(6\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{31}{5}\\)",
  "answer3": "\\(\\dfrac{32}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Raffles 2024 P4 Weighted Assessment 2 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Siti jogged $$\\frac{4}{5}$$ km. She jogged $$\\frac{3}{10}$$ km more than Tom. How far did Tom jog?",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2022 P4 Semestral Assessment 2 Q38",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The mass of a papaya is \\(\\dfrac{1}{2}\\) kg. A watermelon weighs \\(\\dfrac{1}{6}\\) kg more than the papaya. Find the total mass of the papaya and the watermelon. Express your answer as a mixed number in the simplest form.",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(1\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{6}{6}\\)",
  "answer3": "\\(1\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2022 P4 Weighted Assessment 3 Q6",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 3.75 as a mixed number in its simplest form.",
  "answer0": "\\(3\\dfrac{3}{4}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{14}{4}\\)",
  "answer3": "\\(\\dfrac{15}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 End of Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{10}{15}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 End of Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{15}{7}$$ as a mixed number.",
  "answer0": "\\(2\\dfrac{1}{7}\\)",
  "answer1": "\\(2\\dfrac{2}{7}\\)",
  "answer2": "\\(\\dfrac{14}{7}\\)",
  "answer3": "\\(\\dfrac{15}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.4 as a fraction.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 End of Year Exam Q38",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mark bought some sweets. He gave his friends $$\\frac{1}{7}$$ of the sweets and gave his brother $$\\frac{3}{4}$$ of the sweets. All the remaining sweets were eaten by him. What fraction of the sweets did Mark eat?",
  "answer0": "\\(\\dfrac{3}{28}\\)",
  "answer1": "\\(\\dfrac{1}{7}\\)",
  "answer2": "\\(\\dfrac{2}{28}\\)",
  "answer3": "\\(\\dfrac{25}{28}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 Weighted Assessment 2 Q5",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{11}{12}$$ − $$\\frac{2}{3}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2023 P4 Weighted Assessment 2 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The letter A represents a mixed number. Give your answer in its simplest form.",
  "answer0": "\\(1\\dfrac{1}{3}\\)",
  "answer1": "\\(1\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{3}{3}\\)",
  "answer3": "\\(1\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2024 P4 End-of-Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{2}{3}$$ + $$\\frac{5}{6}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{2}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{2}{2}\\)",
  "answer3": "\\(2\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2024 P4 End-of-Year Exam Q21",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.15 as a fraction.",
  "answer0": "\\(\\dfrac{3}{20}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{2}{20}\\)",
  "answer3": "\\(\\dfrac{17}{20}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2024 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The pie chart shows how Edwin uses his monthly pocket money. Savings is $$\\frac{1}{6}$$. What fraction of Edwin's monthly pocket money is spent on stationery?",
  "answer0": "\\(\\dfrac{1}{12}\\)",
  "answer1": "\\(\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{11}{12}\\)",
  "answer3": "\\(\\dfrac{1}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2024 P4 End-of-Year Exam Q38",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Leon has $$\\frac{2}{5}$$ kg of flour in a container. He has $$\\frac{1}{2}$$ kg of flour less than Siti. How much flour do they have altogether? Express your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{3}{10}\\)",
  "answer1": "\\(1\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{12}{10}\\)",
  "answer3": "\\(\\dfrac{13}{11}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2024 P4 Weighted Assessment 2 Q12",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the missing fraction A on the number line. Express your answer as a mixed number in its simplest form.<br>The marked points in order are $$\\frac{4}{5}$$, 1, A, $$\\frac{6}{5}$$, $$\\frac{7}{5}$$, $$\\frac{8}{5}$$.",
  "answer0": "\\(1\\dfrac{1}{10}\\)",
  "answer1": "\\(1\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{10}{10}\\)",
  "answer3": "\\(1\\dfrac{3}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 End-of-Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{10}{15}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{2}{3}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(\\dfrac{2}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 End-of-Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{15}{7}$$ as a mixed number.",
  "answer0": "\\(2\\dfrac{1}{7}\\)",
  "answer1": "\\(2\\dfrac{2}{7}\\)",
  "answer2": "\\(\\dfrac{14}{7}\\)",
  "answer3": "\\(\\dfrac{15}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.4 as a fraction.",
  "answer0": "\\(\\dfrac{2}{5}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{1}{5}\\)",
  "answer3": "\\(\\dfrac{2}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 End-of-Year Exam Q38",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mark bought some sweets. He gave his friends $$\\frac{1}{7}$$ of the sweets and gave his brother $$\\frac{3}{4}$$ of the sweets. All the remaining sweets were eaten by him. What fraction of the sweets did Mark eat?",
  "answer0": "\\(\\dfrac{3}{28}\\)",
  "answer1": "\\(\\dfrac{1}{7}\\)",
  "answer2": "\\(\\dfrac{2}{28}\\)",
  "answer3": "\\(\\dfrac{25}{28}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 Weighted Assessment 2 Q5",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$\\frac{11}{12} - \\frac{2}{3}$$ in its simplest form.",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rosyth 2025 P4 Weighted Assessment 2 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The letter A represents a mixed number. Give your answer in its simplest form.",
  "answer0": "\\(1\\dfrac{1}{3}\\)",
  "answer1": "\\(1\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{3}{3}\\)",
  "answer3": "\\(1\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2022 P4 Semestral Assessment 2 Q24",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write \\(2\\dfrac{1}{9}\\) as an improper fraction.",
  "answer0": "\\(2\\dfrac{1}{9}\\)",
  "answer1": "\\(2\\dfrac{2}{9}\\)",
  "answer2": "\\(\\dfrac{18}{9}\\)",
  "answer3": "\\(\\dfrac{19}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2022 P4 Semestral Assessment 2 Q25",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of 1 - \\(\\dfrac{1}{8}\\) - \\(\\dfrac{1}{4}\\).",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 End of Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{23}{6}$$ as a mixed number.",
  "answer0": "\\(3\\dfrac{5}{6}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{22}{6}\\)",
  "answer3": "\\(\\dfrac{23}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{1}{6} - \\frac{1}{3}$$.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 Weighted Assessment 2 Q11a",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write the fraction represented by X.",
  "answer0": "\\(1\\dfrac{3}{5}\\)",
  "answer1": "\\(1\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{7}{5}\\)",
  "answer3": "\\(\\dfrac{8}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 Weighted Assessment 2 Q12b",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 5.2 as a mixed number in its simplest form.",
  "answer0": "\\(5\\dfrac{1}{5}\\)",
  "answer1": "\\(5\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{25}{5}\\)",
  "answer3": "\\(\\dfrac{26}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 Weighted Assessment 2 Q15",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "A bag of potatoes is $$\\frac{2}{5}$$ kg heavier than a bag of tomatoes. The bag of tomatoes has a mass of $$\\frac{5}{8}$$ kg. What is the mass of the bag of potatoes? Leave your answer in mixed number.",
  "answer0": "\\(1\\dfrac{1}{40}\\)",
  "answer1": "\\(1\\dfrac{1}{20}\\)",
  "answer2": "\\(\\dfrac{40}{40}\\)",
  "answer3": "\\(1\\dfrac{21}{40}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 Weighted Assessment 2 Q16",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Juliet baked some chocolate and oatmeal cookies. She baked 12 chocolate cookies and $$\\frac{5}{8}$$ of the cookies were oatmeal. Her mother gave her another 8 oatmeal cookies. What fraction of the cookies were chocolate?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2023 P4 Weighted Assessment 2 Q18a",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Bryan had some money. He spent $$\\frac{1}{2}$$ of his money on a watch, $$\\frac{1}{5}$$ of his money on two T-shirts and saved the rest. He saved $60. What fraction of his money did he save?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2025 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$4\\frac{2}{3}$$ as an improper fraction.",
  "answer0": "\\(4\\dfrac{2}{3}\\)",
  "answer1": "5",
  "answer2": "\\(\\dfrac{13}{3}\\)",
  "answer3": "\\(\\dfrac{14}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2025 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{3}{4}$$ + $$\\frac{1}{8}$$",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2025 P4 End-of-Year Exam Q29",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.39 as a fraction.",
  "answer0": "\\(\\dfrac{39}{100}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{38}{100}\\)",
  "answer3": "\\(\\dfrac{61}{100}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rulang 2022 P4 Semestral Assessment 2 Q17",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of \\(\\dfrac{9}{10}\\) + \\(\\dfrac{4}{5}\\) ? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{13}{15}\\)",
  "answer2": "\\(\\dfrac{1}{10}\\)",
  "answer3": "\\(\\dfrac{13}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rulang 2022 P4 Semestral Assessment 2 Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 3.08 as a mixed number in its simplest form.",
  "answer0": "\\(3\\dfrac{2}{25}\\)",
  "answer1": "\\(3\\dfrac{3}{25}\\)",
  "answer2": "\\(\\dfrac{76}{25}\\)",
  "answer3": "\\(\\dfrac{77}{26}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Rulang 2022 P4 Semestral Assessment 2 P2 Q6",
  "fix_types": [
   "frac_text",
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Sonia ate \\(\\dfrac{2}{7}\\) of a cake. Lucas ate \\(\\dfrac{2}{5}\\) of the same cake. What fraction of the cake did Lucas eat more than Sonia?",
  "answer0": "\\(\\dfrac{4}{35}\\)",
  "answer1": "\\(\\dfrac{1}{7}\\)",
  "answer2": "\\(\\dfrac{3}{35}\\)",
  "answer3": "\\(\\dfrac{31}{35}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2023 P4 End of Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the stars are grey in colour?",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2023 P4 End of Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{3}{10}+\\frac{4}{5}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{10}\\)",
  "answer1": "\\(1\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{10}{10}\\)",
  "answer3": "\\(1\\dfrac{3}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2023 P4 End of Year Exam Q39",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Olivia used $$\\frac{2}{3}$$ kg of sugar. Shannon used $$\\frac{1}{6}$$ kg of sugar more than Olivia. Adele used $$\\frac{1}{3}$$ kg less sugar than Shannon. What was the amount of sugar used by Adele? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2024 P4 End-of-Year Exam Q18",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$1 - \\frac{1}{8} - \\frac{1}{4}$$",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2024 P4 End-of-Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$2\\frac{2}{3}$$ as an improper fraction.",
  "answer0": "\\(2\\dfrac{2}{3}\\)",
  "answer1": "3",
  "answer2": "\\(\\dfrac{7}{3}\\)",
  "answer3": "\\(\\dfrac{8}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2024 P4 End-of-Year Exam Q26",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "After spilling $$\\frac{2}{3}$$ $$l$$ of water, John has $$1\\frac{1}{2}$$ $$l$$ of water left. How much water does he have at first? Give your answer as a mixed number.",
  "answer0": "\\(2\\dfrac{1}{6}\\)",
  "answer1": "\\(2\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{12}{6}\\)",
  "answer3": "\\(\\dfrac{13}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "SCGS 2024 P4 End-of-Year Exam Q41",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Aminah divided her garden into 4 equal plots, A, B, C and D. The area of her garden is 240 m². $$\\frac{1}{2}$$ of Plot A was planted with tulips and $$\\frac{1}{4}$$ of Plot B was planted with roses. What fraction of her garden did she plant with tulips and roses?",
  "answer0": "\\(\\dfrac{3}{16}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{2}{16}\\)",
  "answer3": "\\(\\dfrac{13}{16}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2023 P4 End of Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{2}{3}-\\frac{1}{12}$$",
  "answer0": "\\(\\dfrac{7}{12}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{6}{12}\\)",
  "answer3": "\\(\\dfrac{5}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2023 P4 End of Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{1}{3}+\\frac{5}{6}$$?<br>Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(1\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{6}{6}\\)",
  "answer3": "\\(1\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2023 P4 End of Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1-\\frac{1}{2}-\\frac{1}{6}$$.<br>Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2023 P4 End of Year Exam Q41a",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Ken has 600 stamps. He gave $$\\frac{3}{5}$$ of the stamps to Tom, $$\\frac{1}{10}$$ of the stamps to John and kept the rest for himself.<br>(a) What fraction of the stamps did Ken keep for himself?",
  "answer0": "\\(\\dfrac{3}{10}\\)",
  "answer1": "\\(\\dfrac{2}{5}\\)",
  "answer2": "\\(\\dfrac{2}{10}\\)",
  "answer3": "\\(\\dfrac{7}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2024 P4 End-of-Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{11}{12}$$ − $$\\frac{5}{6}$$",
  "answer0": "\\(\\dfrac{1}{12}\\)",
  "answer1": "\\(\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{11}{12}\\)",
  "answer3": "\\(\\dfrac{1}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2024 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{2}{3}$$ + $$\\frac{7}{9}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{4}{9}\\)",
  "answer1": "\\(1\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{12}{9}\\)",
  "answer3": "\\(\\dfrac{13}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2024 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "1 − $$\\frac{1}{2}$$ − $$\\frac{3}{8}$$",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2024 P4 End-of-Year Exam Q36",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In the figure, rectangle WXYZ is made up of 6 unit squares. What fraction of the rectangle WXYZ is shaded?",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 End-of-Year Exam Q23",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$3\\frac{4}{5}$$ as an improper fraction.",
  "answer0": "\\(3\\dfrac{4}{5}\\)",
  "answer1": "4",
  "answer2": "\\(\\dfrac{18}{5}\\)",
  "answer3": "\\(\\dfrac{19}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 End-of-Year Exam Q24",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$\\frac{1}{4} + \\frac{5}{8}$$",
  "answer0": "\\(\\dfrac{7}{8}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{6}{8}\\)",
  "answer3": "\\(\\dfrac{1}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 End-of-Year Exam Q25",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$1 - \\frac{1}{10} - \\frac{1}{5}$$",
  "answer0": "\\(\\dfrac{7}{10}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{6}{10}\\)",
  "answer3": "\\(\\dfrac{3}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 Weighted Assessment 2 Q9",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the set of shapes is shaded? Give your answer as a fraction in the simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 Weighted Assessment 2 Q10",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the sum of $$\\frac{1}{4}$$ and $$\\frac{1}{6}$$.<br>$$$$",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 Weighted Assessment 2 Q13",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express the number represented by the letter A on the number line as an improper fraction.<br>$$$$",
  "answer0": "\\(4\\dfrac{2}{5}\\)",
  "answer1": "\\(4\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{21}{5}\\)",
  "answer3": "\\(\\dfrac{22}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 Weighted Assessment 2 Q14",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Hanz ran a distance of $$\\frac{5}{7}$$ km. The distance Sam ran was $$\\frac{1}{2}$$ km shorter than Hanz. What was the total distance that Hanz and Sam ran?<br>$$$$ km",
  "answer0": "\\(\\dfrac{13}{14}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{12}{14}\\)",
  "answer3": "\\(\\dfrac{1}{14}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Hilda 2025 P4 Weighted Assessment 2 Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mrs Lim used $$\\frac{3}{4}$$ kg of flour to bake some cupcakes. She used $$\\frac{1}{3}$$ kg of flour more than Mdm Siti. How much flour did they use altogether? Express your answer as a mixed number in its simplest form.<br>$$$$ kg",
  "answer0": "\\(1\\dfrac{1}{6}\\)",
  "answer1": "\\(1\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{6}{6}\\)",
  "answer3": "\\(1\\dfrac{2}{3}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Joseph 2024 P4 End-of-Year Exam Q19",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$2\\frac{5}{7}$$ as an improper fraction.",
  "answer0": "\\(2\\dfrac{5}{7}\\)",
  "answer1": "\\(2\\dfrac{6}{7}\\)",
  "answer2": "\\(\\dfrac{18}{7}\\)",
  "answer3": "\\(\\dfrac{19}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Joseph 2024 P4 End-of-Year Exam Q28",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the sum of $$\\frac{1}{3}$$ and $$\\frac{3}{4}$$ ? Give your answer as a mixed number in its simplest form.",
  "answer0": "\\(1\\dfrac{1}{12}\\)",
  "answer1": "\\(1\\dfrac{1}{6}\\)",
  "answer2": "\\(\\dfrac{12}{12}\\)",
  "answer3": "\\(1\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Joseph 2024 P4 End-of-Year Exam Q32",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express 0.43 as a fraction.",
  "answer0": "\\(\\dfrac{43}{100}\\)",
  "answer1": "\\(\\dfrac{11}{25}\\)",
  "answer2": "\\(\\dfrac{42}{100}\\)",
  "answer3": "\\(\\dfrac{57}{100}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Joseph 2024 P4 Weighted Assessment 1 Q5",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Express $$\\frac{42}{8}$$ as a mixed number in its simplest form.",
  "answer0": "\\(5\\dfrac{1}{4}\\)",
  "answer1": "\\(5\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{20}{4}\\)",
  "answer3": "\\(\\dfrac{21}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Joseph 2024 P4 Weighted Assessment 1 Q10",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Subtract $$\\frac{2}{3}$$ from $$\\frac{6}{7}$$.",
  "answer0": "\\(\\dfrac{4}{21}\\)",
  "answer1": "\\(\\dfrac{5}{21}\\)",
  "answer2": "\\(\\dfrac{3}{21}\\)",
  "answer3": "\\(\\dfrac{17}{21}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Nicholas 2023 P4 End of Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{20}{9}$$ as a mixed number.",
  "answer0": "\\(2\\dfrac{2}{9}\\)",
  "answer1": "\\(2\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{19}{9}\\)",
  "answer3": "\\(\\dfrac{20}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Nicholas 2023 P4 End of Year Exam Q30",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1-\\frac{1}{3}-\\frac{2}{9}$$.",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Nicholas 2025 P4 End-of-Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{20}{9}$$ as a mixed number.",
  "answer0": "\\(2\\dfrac{2}{9}\\)",
  "answer1": "\\(2\\dfrac{1}{3}\\)",
  "answer2": "\\(\\dfrac{19}{9}\\)",
  "answer3": "\\(\\dfrac{20}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "St Nicholas 2025 P4 End-of-Year Exam Q30",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{1}{3} - \\frac{2}{9}$$.",
  "answer0": "\\(\\dfrac{4}{9}\\)",
  "answer1": "\\(\\dfrac{5}{9}\\)",
  "answer2": "\\(\\dfrac{3}{9}\\)",
  "answer3": "\\(\\dfrac{4}{10}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2023 P4 End of Year Exam P1 Q13",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of 1 - $$\\frac{1}{4}$$ - $$\\frac{1}{8}$$.",
  "answer0": "\\(\\dfrac{5}{8}\\)",
  "answer1": "\\(\\dfrac{3}{4}\\)",
  "answer2": "\\(\\dfrac{4}{8}\\)",
  "answer3": "\\(\\dfrac{3}{8}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2023 P4 End of Year Exam P1 Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$\\frac{29}{4}$$ as a mixed number.",
  "answer0": "\\(7\\dfrac{1}{4}\\)",
  "answer1": "\\(7\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{28}{4}\\)",
  "answer3": "\\(\\dfrac{29}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2023 P4 Weighted Assessment 1 and 2 WA1 Q17",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Devi bought 24 curry puffs. She gave 6 curry puffs to her neighbour and her family ate 8 curry puffs. What fraction of the curry puffs were left? Express your answer in its simplest form.",
  "answer0": "\\(\\dfrac{5}{12}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{4}{12}\\)",
  "answer3": "\\(\\dfrac{7}{12}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2024 P4 End-of-Year Exam Q15",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What fraction of the hearts shown are grey in colour?",
  "answer0": "\\(\\dfrac{11}{20}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{10}{20}\\)",
  "answer3": "\\(\\dfrac{9}{20}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2024 P4 End-of-Year Exam Q20",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "$$1-\\frac{1}{4}-\\frac{1}{2}$$",
  "answer0": "\\(\\dfrac{1}{4}\\)",
  "answer1": "\\(\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{3}{4}\\)",
  "answer3": "\\(\\dfrac{1}{5}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2024 P4 End-of-Year Exam Q22",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Xiao Ming ran $$\\frac{3}{4}$$ km. He ran $$\\frac{1}{3}$$ km less than John.<br>What was the total distance both boys ran?<br>Give your answer as a mixed number in the simplest form.",
  "answer0": "\\(1\\dfrac{5}{6}\\)",
  "answer1": "2",
  "answer2": "\\(\\dfrac{10}{6}\\)",
  "answer3": "\\(\\dfrac{11}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2025 P4 End-of-Year Exam Q15",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "What is the value of $$\\frac{5}{6} + \\frac{7}{12}$$? Express your answer as a mixed number.",
  "answer0": "\\(1\\dfrac{5}{12}\\)",
  "answer1": "\\(1\\dfrac{1}{2}\\)",
  "answer2": "\\(\\dfrac{16}{12}\\)",
  "answer3": "\\(\\dfrac{17}{13}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2025 P4 End-of-Year Exam Q40",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "In March there were 312 students choosing a favourite sport, with 40 choosing tennis. In April, 8 new students chose badminton as their favourite sport. The number of students who chose tennis remained unchanged. What fraction of the students chose tennis as their favourite sport in April? Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{8}\\)",
  "answer1": "\\(\\dfrac{1}{4}\\)",
  "answer2": "\\(\\dfrac{7}{8}\\)",
  "answer3": "\\(\\dfrac{1}{9}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2025 P4 End-of-Year Exam Q41",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Mr Lee had red, yellow and purple files. $$\\frac{1}{4}$$ of the files were red and $$\\frac{3}{5}$$ of the files were yellow. The rest of the files were purple. What fraction of the files were purple?",
  "answer0": "\\(\\dfrac{3}{20}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{2}{20}\\)",
  "answer3": "\\(\\dfrac{17}{20}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2025 P4 Weighted Assessment 1 Q2",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Write $$4\\frac{2}{3}$$ as an improper fraction.",
  "answer0": "\\(4\\dfrac{2}{3}\\)",
  "answer1": "5",
  "answer2": "\\(\\dfrac{13}{3}\\)",
  "answer3": "\\(\\dfrac{14}{4}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Tao Nan 2025 P4 Weighted Assessment 1 Q8",
  "fix_types": [
   "frac_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "Find the value of $$1 - \\frac{1}{4} - \\frac{5}{12}$$<br>Express your answer in the simplest form.",
  "answer0": "\\(\\dfrac{1}{3}\\)",
  "answer1": "\\(\\dfrac{2}{3}\\)",
  "answer2": "\\(\\dfrac{1}{4}\\)",
  "answer3": "\\(\\dfrac{5}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P4"
 },
 {
  "source": "Red Swastika 2024 P5 End-of-Year Exam Q45",
  "fix_types": [
   "fraction_fib_to_mcq"
  ],
  "type_id": 1,
  "question": "The bar graph (Figure 1) shows the number of books sold in a book store from September to November (scale not given). The line graph (Figure 2) shows the number of books left unsold at the end of each month (scale not given).<br>(a) Based on Figure 1, what fraction of the books sold in the three months were sold in October?<br>(b) Given that 18 books were sold in the month of November, how many books were sold from September to November?<br>(c) What was the number of books left unsold in the book store in December?",
  "answer0": "\\(\\dfrac{1}{2}\\)",
  "answer1": "1",
  "answer2": "\\(\\dfrac{1}{3}\\)",
  "answer3": "\\(1\\dfrac{1}{2}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P5"
 },
 {
  "source": "Henry Park 2025 P6 Prelim Q29",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "Students were asked to choose a pouch, a keychain or a badge. \\(\\dfrac{1}{5}\\) chose keychain. The number who chose pouch was \\(\\dfrac{1}{2}\\) of those who chose badge. What fraction of the students chose badge?",
  "answer0": "\\(\\dfrac{8}{15}\\)",
  "answer1": "\\(\\dfrac{3}{5}\\)",
  "answer2": "\\(\\dfrac{7}{15}\\)",
  "answer3": "\\(\\dfrac{8}{16}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q16",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "The figure is made up of 2 squares, ABCD and DEFG. X is on GD and Y is on DE. BC = 7 cm, FE = 6 cm and XD = DY = YE. What fraction of the figure is unshaded?",
  "answer0": "\\(\\dfrac{47}{85}\\)",
  "answer1": "\\(\\dfrac{48}{85}\\)",
  "answer2": "\\(\\dfrac{46}{85}\\)",
  "answer3": "\\(\\dfrac{38}{85}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "Nanyang 2023 P6 Weighted Assessment 1 Paper 2 Q17",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "Clips per container: White 30, Blue 50, Green 60. Clement has some white and some blue containers. The ratio of clips in his white containers to clips in his blue containers is 3 : 2. Express the number of his blue containers as a fraction of the total number of his containers.",
  "answer0": "\\(\\dfrac{2}{7}\\)",
  "answer1": "\\(\\dfrac{3}{7}\\)",
  "answer2": "\\(\\dfrac{1}{7}\\)",
  "answer3": "\\(\\dfrac{5}{7}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "PLMGS 2025 P6 Prelim P2 Q11",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "At first, \\(\\dfrac{1}{5}\\) of a rectangular container was filled with water. More water flowed in from a leaking tap for 30 minutes; the volume rose from 75 cm³ at 0 min to 225 cm³ at 30 min. At the end of 30 minutes, what fraction of the container was filled with water?",
  "answer0": "\\(\\dfrac{3}{5}\\)",
  "answer1": "\\(\\dfrac{4}{5}\\)",
  "answer2": "\\(\\dfrac{2}{5}\\)",
  "answer3": "\\(\\dfrac{3}{6}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "PLMGS 2025 P6 Prelim P2 Q13",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "Ticket prices: Adult below 65 \\$24, Adult 65+ \\$17, Child below 12 \\$10. Adult tickets sold were 6 times the child tickets. \\(\\dfrac{4}{5}\\) of adult tickets sold were for adults below 65. A total of \\$9464 was collected. What fraction of the tickets sold were for adults aged 65 years and above? Give your answer in the simplest form.",
  "answer0": "\\(\\dfrac{6}{35}\\)",
  "answer1": "\\(\\dfrac{1}{5}\\)",
  "answer2": "\\(\\dfrac{5}{35}\\)",
  "answer3": "\\(\\dfrac{29}{35}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "Tao Nan 2024 P6 Practice P2 Q17",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "Mrs Wu spent \\(\\dfrac{1}{6}\\) of her money on a dress and 2 blouses. The dress cost 3 times as much as each blouse. What fraction of Mrs Wu's money was spent on each blouse?",
  "answer0": "\\(\\dfrac{1}{30}\\)",
  "answer1": "\\(\\dfrac{1}{15}\\)",
  "answer2": "\\(\\dfrac{29}{30}\\)",
  "answer3": "\\(\\dfrac{1}{31}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "Catholic High 2025 P6 Prelim P2 Q15",
  "fix_types": [
   "plain_fraction_latex",
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "Chocolate muffins 3 for \\$5, vanilla muffins 4 for \\$6. Mrs Sim spent an equal amount of money on the chocolate muffins and the vanilla muffins. What fraction of the muffins she bought were chocolate? Leave your answer in the simplest form.",
  "answer0": "\\(\\dfrac{9}{19}\\)",
  "answer1": "\\(\\dfrac{10}{19}\\)",
  "answer2": "\\(\\dfrac{8}{19}\\)",
  "answer3": "\\(\\dfrac{9}{20}\\)",
  "correct_answer": 0,
  "note": "FIB fraction answer converted to MCQ. Correct value recomputed/verified and simplified; 3 distractors model common fraction-arithmetic errors (add denominators, wrong/omitted common denominator, opposite operation, off-by-one, left unsimplified).",
  "_grade": "P6"
 },
 {
  "source": "PLMGS 2025 P6 Prelim P2 Q9",
  "fix_types": [
   "fraction_answer_mcq"
  ],
  "type_id": 1,
  "question": "The line graph shows tram visitors Mon–Fri (Mon 210, Tue 0, Wed 350, Thu 180, Fri 420). Find the percentage increase in the number of visitors who took the tram from Thursday to Friday.",
  "answer0": "\\(133\\dfrac{1}{3}\\)%",
  "answer1": "\\(57\\dfrac{1}{7}\\)%",
  "answer2": "\\(233\\dfrac{1}{3}\\)%",
  "answer3": "120%",
  "correct_answer": 0,
  "note": "Mixed-number percentage answer -> MCQ. Part (a) 'Tuesday' is a separate MCQ (see other record). | UNVERIFIED: answer0 unparseable, kept as given.",
  "_grade": "P6"
 }
]