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Faridah baked some cookies. 3/8 of them were coconut cookies and 2/5 of the remainder were peanut cookies. The rest were chocolate cookies. What fraction of the cookies were chocolate cookies?

 Aug 5, 2021
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set total cookies as x

 

3/8x=coconut cookies

 

2/5*5/8 = 1/4x=peanut cookies

 

(rest) x-3/8x-1/4x = 3/8x accounts for chocolate cookies, so 3/8 is the fraction we're looking for

 Aug 5, 2021

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