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29 May, 10:51

Jack spends (1) 3/4 as long on his homework as Jill. Last week, Jill spent (9) 3/4 hours doing homework. How long dis jack pens doing homework

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  1. 29 May, 12:52
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    Question is a little uncertain with the number in parentheses but if Jill spent 3/4 hour and Jack 3/4 of her time then multiply together 3/4 x 3/4=9/16 of an hour. If your saying that Jill spent 9 and 3/4 hours and jack spends 1 3/4 as much time you still multiply but change to improper fraction first. Jill spent 9 x 4 + 3 hours which equals 39/4 hours and Jack spends 1 x 4 + 3 = 7/4 as much time, now multiply 39/4 x 7/4=273/16, now reduce, 17 and 1/16
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