Dividing by 3⁄8 and then multiplying by 5⁄9 is the same as dividing by what number? Choose the correct option
A) 31 ⁄ 5  B) 16 ⁄ 5  C) 20 ⁄ 9  D) 40 / 27  E) 5 ⁄ 16

Rationale: say x / 3 / 8 * 5 / 9 = x * 8 / 3 * 5 / 9 = x * 40 / 27 d
Answer: D