[
  "Rope A is longer than Rope B, so Rope B = Rope A - difference. Convert both mixed numbers to fractions with denominator 4.",
  "Rope A = 4 1/2 = 9/2 = 18/4. Difference = 1 3/4 = 7/4. 18/4 - 7/4 = 11/4.",
  "11/4 = 2 3/4 m. Answer: 2 3/4 (option B)."
]