A batch of cookies calls for 3/4 cup of flour. you want to make 1/2 of a batch. how much flour do you need?

3/8 of cup

To solve this we are going to use a proportion. We know that to make 1 batch of cookies we need 3/4 cup of flour, so to make 1/2 batch of cookies we'll need x cups of flour. In other words:

\frac{1batch>\frac{3}{4}cup.flour}{\frac{1}{2}batch>xcup.flour}

Now, we can express our proportion as a fraction and solve for x:

\frac{1}{\frac{1}{2} } =\frac{\frac{3}{4} }{x}

x=(\frac{3}{4} )(\frac{1}{2} )

x=\frac{3}{8}

You will need  3/8 of cup flour to make 1/2 of a bath of cookies.

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