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? asked in Education & ReferenceHomework Help · 10 years ago

Help With Fractions Please !?

If Jack spends 1 2/3 as long on his homework as Jill.

Last week, Jill spent 9 1/2 hours doing homework.

How long did Jack spend doing homework?

The week before, Jack spent 18 1/4 hours doing homework.

How long did Jill spend doing home work?

The sum of three mixed numbers is 23 8/15

Two of the numbers are 9 2/3 and 6 1/3

What is the third number?

Thanks for any help! :D

1 Answer

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  • 10 years ago
    Favorite Answer

    1/3 of 9 1/2 is 3 1/6

    times that by 5 to get 5/3 ( 1 2/3) of the amount of homework Jill does

    15 5/6

    18 and 1/4 / by 5 = 3 13/20

    3 13/20 * 3 =

    10 19 /20

    9 2/3 + 6 1/ 3 = 16

    23 8/15 - 16 =

    7 8 /15

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