A unit fraction is a fraction that has a numerator of one.

The denominator is the number on the bottom of a fraction. It tells us how many parts the whole has been divided into.

Find the whole when the size of a unit fraction is known

Maths

In this unit pupils will find unit and non-unit fractions of whole numbers and explore parts and wholes. In the future unit pupils will use representations to describe and compare two fractions. They will  explain the relationship within families of equivalent fractions and use their knowledge of common equivalents to compare fractions with decimals.

In the prior unit pupils multiplied an improper fraction and a mixed number by a whole number. In this unit pupils will find unit and non-unit fractions of whole numbers and explore parts and wholes.

Find unit and non-unit fractions of whole numbers exploring parts and wholes

A unit fraction is a fraction with a numerator of {{ }}

If this is the whole, what fraction of the whole is each segment?

This heart is one-quarter of the whole. How many parts make up the whole?

If this blue circle is one-eighth of the whole, which images could represent the whole?

These two triangles make up one-fifth of the whole. How many triangles are needed to make the whole?

If this 50 p coin is one-tenth of the whole, what is the value of the whole?

Which image shows one-fifth of the whole?

What is the value of each part on this number line?

Calculate and find the missing value. $$ \frac{1}{9} $$ × {{ }} = 1

This lesson will be removed by end of Summer Term 2025.

Find the whole when the size of a unit fraction is known

Lesson outcome

This lesson will be removed by end of Summer Term 2025.