# How do you simplify (5/8)^2 leaving only positive exponents?

$\frac{5}{8} = \frac{5}{{2}^{3}}$
${\left(\frac{5}{8}\right)}^{2} = {\left(\frac{5}{{2}^{3}}\right)}^{2} = {5}^{2} / {2}^{6}$