# Rationalise the denominator of the following: √40/√3

**Solution:**

Given, √40/√3

We have to rationalise the denominator.

To rationalise we have to take conjugate,

√40/√3 = √40/√3 × √3/√3

= √40(√3)/3

= √120/3

Therefore, √40/√3 = √120/3

**✦ Try This: **Rationalise the denominator of the following: √40/√3

Given, √30/√2

We have to rationalise the denominator.

To rationalise we have to take conjugate,

√30/√2 = √30/√2 × √2/√2

= √30(√2)/2

= √60/2

Therefore, √30/√2 = √60/2

**☛ Also Check: **NCERT Solutions for Class 9 Maths Chapter 1

**NCERT Exemplar Class 9 Maths Exercise 1.3 Problem 10(ii)**

## Rationalise the denominator of the following: √40/√3

**Summary:**

When we rationalize the denominator in a fraction, then we are eliminating any radical expressions such as square roots and cube roots from the denominator. On rationalising the denominator √40/√3 we get √120/3

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