Rationalising a single term denominator
I can use the technique of rationalising the denominator to transform a fraction to an equivalent fraction.
Rationalising a single term denominator
I can use the technique of rationalising the denominator to transform a fraction to an equivalent fraction.
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Lesson details
Key learning points
- Fractions should be given in their simplest term.
- The denominator should be written as simply as possible.
- Using equivalent fractions, you may be able to write the denominator without a surd.
Keywords
Surd - A surd is an irrational number expressed as the root of a rational number.
Common misconception
Pupils may think the simplest form means a simplified surd as a denominator.
A fraction is not fully simplified if the denominator contains a surd term and must be rationalised as is convention.
To help you plan your year 10 maths lesson on: Rationalising a single term denominator, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Rationalising a single term denominator, download all teaching resources for free and adapt to suit your pupils' needs.
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