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Year 4 - Maths

Convert a number of quarters from an improper fraction to a mixed number

Convert improper fractions to mixed numbers and vice versa

Unit Summary

In this unit pupils will express and convert a quantity from an improper fraction to a mixed number and explain how a mixed number is converted into an improper fraction.

Lesson Summary

You will learn to convert a quantity from an improper fraction to a mixed number using quarters.

Key Notes

  • An improper fraction is a fraction where the value of the numerator is greater than the value of the denominator.
  • An improper fraction is greater than 1
  • Four quarters are equal to one whole or 1
  • If there are quarters left, they form the fraction part of the mixed number.

Vocabulary To Learn

  • Mixed number: A mixed number is a whole number and a fraction combined.
  • Improper fraction: An improper fraction is a fraction where the numerator (the top number) is greater than or equal to the denominator (the bottom number).

Common Mistakes To Avoid

  • Children may not fully convert and may leave the fractional part of the mixed number as an improper fraction e.g. 13/4 = 2 and 5/4

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

An improper fraction is a fraction where the value of the numerator is greater than the value of the denominator. An improper fraction is greater than 1.

2. Use this key word in a maths sentence and explain it clearly. 'Mixed number'

A mixed number is a whole number and a fraction combined. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Children may not fully convert and may leave the fractional part of the mixed number as an improper fraction e.g. 13/4 = 2 and 5/4. Correction: Support via questioning: How many quarters make one whole? How many full groups of four quarters can you make? Emphasise the fractional part needs to have a numerator smaller than the denominator and take time to discuss why.

More Lessons In This Unit

Browse all guides in the Year 4 Maths guide library.