# How do you simplify the fraction (3/5)^-2?

${\left(\frac{3}{5}\right)}^{- 2} = {\left(\frac{5}{3}\right)}^{2} = \frac{25}{9} = 2 \frac{7}{9}$
${\left(\frac{a}{b}\right)}^{- c} = {\left(\frac{b}{a}\right)}^{c}$