Year 3 - Maths
Compare non-unit fractions including those equal to 1
Non-unit fractions
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will explain that non-unit fractions are composed of more than one unit fraction using knowledge of unit fractions to find one whole.
Lesson Summary
You will learn to compare non-unit fractions including those equal to 1.
Key Notes
- To compare non-unit fractions, the whole must be the same for each fraction.
- When the numerators are the same, the greater the denominator, the smaller the fraction.
- When the denominators are the same, the greater the numerator, the greater the fraction.
Vocabulary To Learn
- Denominator: A denominator is the bottom number written in a fraction.
- Numerator: A numerator is the top number written in a fraction.
Common Mistakes To Avoid
- Pupils may struggle to compare fractions with the same numerator or denominator.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
To compare non-unit fractions, the whole must be the same for each fraction. When the numerators are the same, the greater the denominator, the smaller the fraction.
2. Use this key word in a maths sentence and explain it clearly. 'Denominator'
A denominator is the bottom number written in a fraction. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may struggle to compare fractions with the same numerator or denominator. Correction: Encourage pupils to use fraction representations to help them visualise. Reference the size of the parts (same numerator, greater denominator means smaller parts) or how many there are (same denominator, greater numerator means more parts).
More Lessons In This Unit
- Compare fractions with the same numerator Study Guide
- Compare non-unit fractions with the same denominator Study Guide
- Explain that non-unit fractions are made of more than one unit fraction Study Guide
- Identify non-unit fractions Study Guide
- Identifying equal parts in a whole in different contexts Study Guide
- Place fractions between 0 and 1 on a number line Study Guide
- Review comparing unit fractions Study Guide
- Use knowledge of non-unit fractions to solve problems Study Guide
- Use knowledge of unit fractions to find one whole Study Guide
Browse all guides in the Year 3 Maths guide library.