# Finding non-unit fractions of quantities

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## Lesson details

### Key learning points

- In this lesson, we will revisit what a non-unit fraction is. We will then use a 'bar modelling' strategy to help us calculate non-unit fractions of amounts. Finally, we will work backwards by applying this knowledge to use the value of the parts to help us calculate the total value of the quantity (whole).

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

Which of these fractions are non-unit fractions?

1/3

1/6

1/7

Q2.

Which of these pictures represent a non-unit fraction?

Option 2

Option 4

Q3.

What is the definition of a 'non-unit' fraction?

A non-unit fraction is when the denominator is greater than the numerator

A non-unit fraction is when the denominator is more than 1

Q4.

What non-unit fraction of this shape is not coloured in?

2/8

6/2

8/6

Q5.

Elizabeth ate 5 parts of a chocolate bar. The chocolate bar was split into 20 equal parts. What non-unit fraction of the chocolate bar did Elizabeth not eat?

1/2

20/5

5/20

### 5 Questions

Q1.

Calculate 3/4 of 16

16

4

8

Q2.

What is 5/9 of 18?

1

80

9

Q3.

If 2/4 of a number is 10, what is the value of the whole?

10

100

4

Q4.

Rachael gave 8 crisps to her friend. This was 2/10 of the whole pack. How many crisps did Rachael start with?

16

8

80

Q5.

George thinks he has the most sweets. He has 3/5 of 50 sweets, but his friend, Fred, has 5/10 of 50. True or False that George has the most sweets?

False