How do you simplify (1/27) ^(-1/3)?

${\left(\frac{1}{27}\right)}^{- \frac{1}{3}}$
$= {\left(\frac{1}{\frac{1}{27}}\right)}^{\frac{1}{3}}$
$= {27}^{\frac{1}{3}}$
$= \sqrt[3]{27}$
$= 3$