Question

A recipe for cookies requires 1/3 cup of butter. Anneliese want to make 2/5 of the recipe. How many cups of butter should Anneliese use to make the cookies? Explain how you gave your answer.

Answer 1

Answer:

Anneliese needs $\frac{2}{15}$ cups of butter to make $\frac{2}{5}$ of the recipe for cookies.

Step-by-step explanation:

According to the statement, a recipe for cookies require $\frac{1}{3}$ cup of butter and the amount of butter required to prepare $\frac{2}{5}$ of the recipe is determined by the following simple rule of three:

$x = \frac{\frac{2}{5}\,recipe }{1\,recipe}\times \frac{1}{3}\,cups$

$x = \frac{2}{15}\,cups$

Anneliese needs $\frac{2}{15}$ cups of butter to make $\frac{2}{5}$ of the recipe for cookies.