Question

noel has been working on making handmade birthday cards for 11/12 hour. if each card takes 1/6 hour to make, how many whole cards did he make?

Answer 1

(11/12) ÷ (1/6) = (11/12) × 6 = 11/2 = 5.5, so he made 5 whole cards (since you can't count a half card as whole).

(Or in minutes: 11/12 hour = 55 minutes, each card = 10 minutes, 55 ÷ 10 = 5.5 → 5 whole cards.)