How do you rationalize the denominator and simplify 2/sqrt5?

$\frac{2}{\sqrt{5}} = \frac{2 \sqrt{5}}{5}$
$\frac{2}{\sqrt{5}} = \frac{2 \sqrt{5}}{\sqrt{5} \sqrt{5}}$
[since $\frac{\sqrt{5}}{\sqrt{5}} = 1$]
$\frac{2}{\sqrt{5}} = \frac{2 \sqrt{5}}{5}$