Surds
Hong Kong
Stage 1 - Stage 3
Rationalise the denominator
Interactive practice questions
Fill in the blanks to complete the question below.
The number $\sqrt{\frac{2}{7}}$√27 can be rewritten without a radical in the denominator by multiplying both the numerator and denominator by $\sqrt{\editable{}}$√.
Easy
Less than a minute
Fill in the blanks to complete the statement below.
Rationalise the denominator for the given expression:
$\frac{1}{\sqrt{11}}$1√11
Rationalise the denominator and give your answer in the simplest form: $\frac{7}{\sqrt{21}}$7√21
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