How to explain add fractions with the same denominator in add & subtract fractions to your child: Example question
31 October 2026
Adding fractions with the same denominator is a key skill for children preparing for 11+ maths. It helps build confidence with fractions and makes more complex problems easier later on.
Example question
What is 1/5 + 2/5?
Step 1: Check the denominators. Both fractions have the same denominator, 5.
Step 2: Add the numerators (top numbers): 1 + 2 = 3.
Step 3: Keep the denominator the same: 5.
Key insight: When adding fractions with the same denominator, only the numerators change. The denominator stays the same.
Answer: 1/5 + 2/5 = 3/5.
Now your child can spot when fractions have the same denominator and knows exactly what to do next. Practice questions just like this are ready to help them master the method, using clear steps every time. For more support, search for maths.com uk resources.
