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a recipe for cookies calls for 3 1/4 cups of sugar.amy has already. put in 3 1/9 cups.how many more cups does need to put in.

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3(1)/(4)-3(1)/(9)=(1)/(4)-(1)/(9)=(9)/(36)-(4)/(36)=\boxed{(5)/(36)}\leftarrow answer
User Ivan Voras
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