Answer
$\frac{1}{1.5}=\frac{1.5}{2.25}$
Work Step by Step
x is to y is the same as $\frac{x}{y}$
So 1 cup of instant rice is to 1.5 cups cooked rice as 1.5 cups of instant rice is to 2.25 cups of cooked rice is the same as $\frac{1}{1.5}=\frac{1.5}{2.25}$
