Years Months Days Hours
12)3 9 4 0
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0 3 22 20
EXPLANATION: (1) We cannot divide 3 by 12, so we reduce 3 years to
months. 3 years = 36 months. 36 months + 9 months = 45 months. 45 ÷ 12 =
3, and a remainder 9. Write the 3 and carry the remainder 9.
(2) 9 months (carried) = 270 days. 270 days + 4 days = 274 days. 274 ÷
12 = 22, and a remainder 10. Write the 22 and carry the 10.
(3) 10 days = 240 hours. 240 ÷ 12 = 20. Write the 20.
(4) Result = 3 months 22 days 20 hours.