Subtracting Mixed Numbers with the Same Denominator: Step-by-Step Example
22 October 2026
When your child is learning to subtract mixed numbers with the same denominator, it helps to break the problem into simple steps. This method keeps things clear and builds confidence for 11+ maths practice.
Worked example
3 2/5 − 1 1/5
Step 1
Subtract the whole numbers: 3 − 1 = 2
Step 2
Subtract the fractions: 2/5 − 1/5 = 1/5
Step 3
Combine the answers: 2 and 1/5
The correct answer is 2 1/5.
| Step | Calculation | Answer |
|---|---|---|
| Subtract whole numbers | 3 − 1 | 2 |
| Subtract fractions | 2/5 − 1/5 | 1/5 |
| Combine | 2 and 1/5 | 2 1/5 |
After working through this example, your child will be able to spot when to subtract the whole numbers and when to subtract the fractions. The same approach can be used for similar questions, so they can practise until it feels easy. Key insight: Practising with subtraction tables and real exam-style questions, like those found on maths.com uk, helps children prepare for the 11+ exam.
