Rationalising the denominator by Boxed Rockets

Rationalise the Denominator

\frac{7}{\sqrt{5}}

\frac{7 \sqrt{5}}{5}

\frac{10}{3 \sqrt{5}}

\frac{2 \sqrt{5}}{3}

\frac{4 + \sqrt{5}}{\sqrt{5}}

\frac{4 \sqrt{5} + 5}{5}

\frac{8 - 4 \sqrt{2}}{\sqrt{2}}

4 \sqrt{2} - 4