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Surds - Rationalise the Denominator

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What is rationalising the denominator?
The process of removing a surd from the denominator of a fraction is called rationalising the denominator.
Surds must always be removed from denominators of fractions.

How to rationalise the denominator?
Rationalising surds (1)
Rationalising surds from the denominator of fractions (simple case)
Rationalising surds (2)
Rationalising denominators with more complex surds

Multiplication & division with surds 1
Multiplication & division with surds 2

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