Year 6 - Maths
Explain how to add related unit fractions with a representation or image
Addition and subtraction of 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 how to write a fraction in its simplest form when solving addition and subtraction problems.
Lesson Summary
You will learn to solve problems involving adding and simplifying fractions with different denominators.
Key Notes
- Fractions need to have the same denominator if you are to add and subtract them.
- Common denominators for non-related fractions can be found using common multiples of the denominators.
- When adding or subtracting fractions with the same denominators you just add or subtract the numerators.
Vocabulary To Learn
- Common denominator: When two or more fractions share the same denominator, you can say they have a common denominator.
Common Mistakes To Avoid
- Pupils think that although parts look different, they cannot represent the same fraction of the whole.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Fractions need to have the same denominator if you are to add and subtract them. Common denominators for non-related fractions can be found using common multiples of the denominators.
2. Use this key word in a maths sentence and explain it clearly. 'Common denominator'
When two or more fractions share the same denominator, you can say they have a common denominator. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils think that although parts look different, they cannot represent the same fraction of the whole. Correction: Ensure multiple examples are provided where the fractional parts of the whole look different but instead are equivalent in value. You may like to create a concrete example of each shape and show how it can be manipulated so the parts are equivalent.
More Lessons In This Unit
- Add and subtract non-related fractions with different denominators Study Guide
- Explain how to add related unit fractions without a representation or image Study Guide
- Explain how to subtract related unit fractions Study Guide
- Explain how to write a fraction in its simplest form Study Guide
- Explain with and without an image how to add and subtract related non-unit fractions Study Guide
- Explain with and without images how to add and subtract related non-unit fractions bridging a whole Study Guide
- Reason about how to write a fraction in its simplest form Study Guide
- Use knowledge of adding and subtracting related unit fractions to solve problems Study Guide
- Use knowledge of fractions in their simplest form when solving addition and subtraction problems Study Guide
Browse all guides in the Year 6 Maths guide library.