Mastering Same Denominator Fractions: Practical Worksheets for 11+ Success
21 October 2026

Same denominator fractions made simple
Understanding fractions with the same denominator is a key building block in 11+ maths. These are fractions where the bottom numbers are the same, such as 3/8 and 2/8. Children need to be confident with these before moving on to more complex fraction questions.


Why this skill matters for 11+
Questions on the 11+ often ask children to add or subtract fractions with the same denominator. Mastering this skill helps your child tackle fraction problems calmly and quickly, building confidence for the exam.
How worksheets help
Regular practice with same denominator fractions worksheets gives children the repetition they need. Worksheets break the process into small steps, making it easier to spot mistakes and build up speed.


Worked example
3/8 + 2/8
First, check that the denominators are the same. Both are 8.
Next, add the numerators: 3 + 2 = 5.
Keep the denominator the same: 8.
So, 3/8 + 2/8 = 5/8.
Supporting your child
Sit with your child as they work through a few questions. Encourage them to say each step out loud. If they make a mistake, guide them back to checking the denominator first.


Key insight: Mastering same denominator fractions builds a strong foundation for all fraction work in the 11+. Practice with clear, focused worksheets helps children feel prepared and confident.


