Rationalising the denominator by Boxed Rockets

Rationalise the Denominator

\frac{2}{\sqrt{2}}

\sqrt{2}

\frac{5}{9 \sqrt{10}}

\frac{\sqrt{10}}{18}

\frac{8 + \sqrt{5}}{\sqrt{5}}

\frac{8 \sqrt{5} + 5}{5}

\frac{1 - 2 \sqrt{2}}{\sqrt{2}}

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