Page 243 - New Medley 5 Semester 1
P. 243
(b) weeks days hours
2 4 8
× 3
6 12 24
= 6 weeks 13 days = 7 weeks 6 days
or 1 month 3 weeks 6 days
Example 7: (a) Divide 18 hours 45 minutes 30 seconds by 5
(b) Divide 25 weeks 6 days 16 hours by 8
Solution: Divide the bigger units first and convert the remainder
into the smaller units to proceed to the next division.
(a) 18 h 45 min 30 s ÷ 5
3 × 60 + 45 = 225 min
3 h 45 min 6s
) ) )
5 18 5 225 5 30
− 15 − 20 − 30
3 25 0
− 25
0
18 h 45 min 30 s ÷ 5 = 3 h 45 min 6 s
(b) 25 weeks 6 days 16 hours ÷ 8
1 × 7 + 6 = 13 days 5 × 24 + 16 = 136 hours
17
)
) 3 weeks 1 day 8136 hours
)
8 25 813
− 24 − 8 − 8
1 5 56
− 56
0
\ 25 weeks 6 days 16 hours ÷ 8 = 3 weeks 1 day 17 hours
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