Answer
$\frac{5}{8}\lt\frac{3}{4}$
Work Step by Step
We can rewrite $\frac{3}{4}=\frac{3\times2}{4\times2}=\frac{6}{8}$.
$\frac{6}{8}$ is greater than $\frac{5}{8}$, because its numerator is greatest while both denominators are the same
Therefore, $\frac{5}{8}\lt\frac{3}{4}$.