NumihanaAdd equal-sized fraction parts.
When the denominators match, both fractions name the same-sized parts. Combine the numerators and keep the denominator.
When this helps
Useful for adding fractions with the same denominator. A simplified equivalent answer is accepted.
A common slip
Do not add the denominators: that changes the size of each part.
Worked example
3/4 + 1/4 =
What is the size of the parts, expressed as the denominator?
Both fractions use the same denominator.
4How many parts are there altogether?
Add the two numerators.
4What is the final answer?
Recombine your working and check it against the original question.
1
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Teaching context
This lesson practises mathematical representations and calculations. The displayed practice uses selected England Year 3 skills; the strategy can also help learners in other years.
Curriculum alignment describes the mathematical skill. It does not mean this is the only required teaching method.
Department for Education: mathematics programmes of study ↗Original method lesson v1.
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