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icang [17]
3 years ago
8

It took 2/3 of an hour to complete her science homework. It took Bethany 3/4 of the amount of time to do her math homework as he

r science homework. How many more minutes did it take Bethany to complete her science than her math homework
Mathematics
1 answer:
SOVA2 [1]3 years ago
3 0
We know there are 60 minutes in an hour.  To find 2/3 of an hour we divide 60/3 to find 1/3 and multiply by 2 so:
60/3 = 20
20*2 = 40 minutes (which is 2/3 of an hour) to do science

We do the same thing with the 40 minutes.  To find 1/4 of 40 minutes we divide 40 by 4 and then multiply it by 3 to get 3/4 so:

40/4 = 10
10*3 = 30 minutes

Then subtract the times 40-30 = 10 minutes

It took her 10 more minutes to complete her science homework.

Hope that helps


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