Question

A recipe calls for 2/3 cup of sugar for every 4 teaspoons of vanilla. What is the unit rate in teaspoons per cup?

Answer 1

Divide the number of teaspoons by the number of cups.

$\dfrac{4~teaspoons}{\frac{2}{3}~cup} =$

$= \dfrac{4}{1} \div \dfrac{2}{3}~\dfrac{teaspoons}{cup}$

$= \dfrac{4}{1} \times \dfrac{3}{2} ~\dfrac{teaspoons}{cup}$

$= 6 ~\dfrac{teaspoons}{cup}$