How many Rationalising denominators practice questions are there?

There are 27 self-marking GCSE Maths questions on Rationalising denominators, written for AQA, Pearson, OCR across Higher tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Rationalising denominators?

No. You can start practising Rationalising denominators straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.

Surds

Rationalising denominators

27 self-marking GCSE practice questions on Rationalising denominators, written specifically for AQA, Pearson, OCR across Higher tier. Instant marking with full worked solutions on every question.

Start practising Rationalising denominators (no account needed)

Sample Rationalising denominators questions

A few of the 27 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

Question 13 marksGrade 6
Simplify fully $\dfrac{20}{\sqrt{5}}$

What are the common mistakes in Rationalising denominators?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

Gives a rounded decimal answer where an exact form (fraction, surd, or multiple of pi) was required
Gave a rounded decimal (0.16) instead of the exact rationalised surd form
Multiplies the denominator by the scale factor but forgets to also multiply the numerator
Rationalised the denominator to $23$ but forgot to also multiply the numerator by the conjugate $5 - \sqrt{2}$

Quick answers about Rationalising denominators

How many Rationalising denominators practice questions are there?: There are 27 self-marking GCSE Maths questions on Rationalising denominators, written for AQA, Pearson, OCR across Higher tier. Each one is marked instantly and has a full worked solution.
Do I need an account to practise Rationalising denominators?: No. You can start practising Rationalising denominators straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.