Answer
$\frac{25}{40}$
Work Step by Step
In order to rewrite $\frac{5}{8}$ with a denominator of 40, we must first divide 40 by the original denominator.
$40÷8=5$
Therefore, we must multiply the original numerator by 5.
$\frac{5}{8}=\frac{5\times5}{40}=\frac{25}{40}$
