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A recipe calls for 3/4 cup of butter. Angie wants to triple the recipe, but she has only 1 5/8.

How much butter must she borrow from a neighbor?

Verified Answer :

ddk

Let's start out by tripling the original recipe to see how much butter Angie needs.

\(\frac{3}{4} * 3 = total\)
\(\frac{3* 3}{4} = total\)
\(\frac{9}{4} = total\)
\(2 \frac{1}{4} = total\)

So we need \(2 \frac{1}{4}\) cups of butter, but Angie only has \(1 \frac{5}{8}\). Let's subtract what Angie has from the total to see how much more she needs.

\(2 \frac{1}{4} - 1\frac{5}{8} = n\)
\(\frac{9}{4} - \frac{13}{8} = n\)
we will need the least common denominator for both fractions
\(\frac{2}{2} *(\frac{9}{4}) - \frac{13}{8} = n\)
\(\frac{18}{8} - \frac{13}{8} = n\)
\(\frac{5}{8} = n\)

So Angie need \(\frac{5}{8}\) cups more of butter for the recipe.

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