Question

Rationalise the denominator of 3/√5



​

Answer 1

Answer:

In order to rationalise the denominator we need to get rid of the surd (square-root) on the bottom of the fraction. To do this, we can multiply the denominator by sqrt(5). ... Therefore, by multiplying the top and bottom of the fraction by sqrt(5), we get 3*sqrt(5)/5 as our rationalised fraction.

Answer 2

Answer:

$3 \sqrt{5 \di}$