Worked example
31 October 2026
When adding and subtracting fractions with the same denominator, you only need to work with the numerators. This makes the process straightforward and helps children focus on the key idea: the bottom number stays the same.
Worked example
Add and subtract fractions with the same denominator: 5/8 + 2/8 - 3/8
First, add the numerators: 5 + 2 = 7. Keep the denominator as 8. Now you have 7/8.
Next, subtract the last numerator: 7 - 3 = 4. Keep the denominator as 8. Now you have 4/8.
The correct answer is 4/8.
Key insight: Your child can now spot that, with the same denominator, fractions are added and subtracted just by working with the top numbers. This skill is important for building confidence with fraction questions, and similar practice problems are ready for them to try next.
