Answer
$1 \frac{25}{64}$
Work Step by Step
$(\frac{1}{4})^{3} + (\frac{5}{8} + \frac{3}{4})$ =
$(\frac{1}{4})^{3} + (\frac{5}{8} + \frac{6}{8})$ =
$(\frac{1}{4})^{3} + \frac{11}{8}$ =
$\frac{1}{64} + \frac{11}{8}$ =
$\frac{1}{64} + \frac{88}{64}$ =
$\frac{89}{64}$ =
$1 \frac{25}{64}$
