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## Answers

In elementary algebra, root rationalisation is a process by which surds in the denominator of an irrational fraction are eliminated. These surds may be monomials or binomial involving square roots.

Example,rationalize-

To rationalise this kind of monomial bring in the factor :

Example,rationalize-

To rationalise this kind of monomial bring in the factor :

Example,rationalize- 10/ \sqrt{a}

To rationalise this kind of monomial bring in the factor :

10/ \sqrt{a}=10/ \sqrt{a}* \sqrt{a}/ \sqrt{a}=10 \sqrt{a}/( \sqrt{a})^{2}

Rationalizing 3/4

*3/4 * -4/-4 = -12 / -16*