Add fractions with the same denominator using number lines: Example question
31 October 2026
Adding fractions with the same denominator can feel much simpler when you use a number line. This method helps children see exactly what is happening as they add each part, making the process clear and visual.
Add 1/4 + 2/4 using a number line
Step 1: Draw a number line from 0 to 1. Split it into 4 equal parts, because the denominator is 4.
Step 2: Start at 0. Move 1 part to the right. You are now at 1/4.
Step 3: From 1/4, move 2 more parts to the right. Count: 1/4 to 2/4, then 2/4 to 3/4.
Key insight: Each jump is 1/4. Adding means you keep moving right on the number line.
Step 4: You land at 3/4.
The answer is 3/4.
Click or tap on the number line to answer
Now your child can spot how each step on the number line matches a part of the fraction. They'll recognise that adding fractions with the same denominator is just moving along the line in equal jumps. The next question will help them practise this skill for themselves.
