[
  "Area of a rectangle = length x width. Multiply the two fractions, then simplify the result.",
  "7/10 x 2/5 = (7 x 2)/(10 x 5) = 14/50. Simplify by dividing numerator and denominator by 2: 14/50 = 7/25.",
  "The area is 7/25 square metres. Answer: 7/25 (option D)."
]