Question

Rationalise the denominators of 3 upon under root 5

Answer 1

$</p><p> \sf \rightarrow \quad \frac{3}{ \sqrt{5} } \\ \\ \sf \rightarrow \quad \frac{3}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \\ \\ \sf \rightarrow \quad \frac{3 \sqrt{5} }{5} </p><p></p><p>$