BRITMATHS

Free · No account needed

Pearson Edexcel International GCSE Mathematics B · All papers (1, 2) · Number

Rationalising the denominator

Marks, papers and a question to try for 4MB1 rationalising the denominator.

All sittings since 2019

In the papers analysed (January 2019 to November 2025, 42 papers).

What the papers show

Share of marks
0.7% of the marks analysed
How often
On 9 of 42 papers analysed
Which papers
Paper 1 (calculator allowed)
Usual command words
express, show that, write
Difficulty
on the harder side (3.6 on a scale from 1, the easiest, to 5)
Last seen
November 2025

A question to try

Questions for 4MB1 are not published yet.

What next?

Practise for free

Paid practice chooses what you work on next and comes back to it over time. Accounts are not open yet.