Rationalising the denominator by Boxed Rockets

Rationalise the Denominator

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

\frac{1 \sqrt{10}}{2}

\frac{3}{4 \sqrt{10}}

\frac{3 \sqrt{10}}{40}

\frac{3 + \sqrt{2}}{\sqrt{2}}

\frac{3 \sqrt{2} + 2}{2}

\frac{7 - 7 \sqrt{2}}{\sqrt{2}}

\frac{7 \sqrt{2} - 14}{2}