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Alex787 [66]
3 years ago
13

What is 7 and a half hours + 6 and 3/4 hours + 7 and 1/3 hours ?

Mathematics
2 answers:
Lorico [155]3 years ago
6 0
7 and a half hours = 7 h 30 min
6 3/4 hours = 6 h 45 min
7 1/3 hours = 7 h 20 min

the total is 7h30+6h45+7h20 = 21h35 min
Korolek [52]3 years ago
4 0
7 and 1/2+6 and 3/4+7 and 1/3=7+1/2+6+3/4+7+1/3=7+6+7+1/2+3/4+1/3=20+1/2+3/4+1/3
convert bottom nubmer to same (12)
1/2 times 6/6=6/12
3/4 times 3/3=9/12
1/3 times 4/4=4/12
20+6/12+9/12+4/12=20+19/12=20+1+7/12=21+7/12=21 and 7/12
answer is 21 and 7/12 hour or 21.58 hour or 21 hour and 35 minutes
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