Page 201 - Math Smart - 7

CHAPTER 8.6 In this chapter

Pupils should be able to:
Fraction of a Quantity • multiply a fraction by an
integer
• calculate simple fractions
and percentages of
quantities
We can use fractions to find out a part of a group of items.
For example, we can work out what fraction of

the bikes are yellow, the shoes have laces and the people in the room
wear glasses.

Paul has 12 sweets. He wants to share them equally
with his 3 friends. How many sweets does each ^

Solution
Method 1 He can divide the sweets into 4 groups of equal size.
Each boy gets 3 sweets.

Method 2 ^ of 12 sweets = 12 sweets-4
= 3 sweets I I

Example 2

Peter has 12 sweets.
Find I of the 12 sweets.

Solution
Method 1 Method 2
He can divide the sweets ^ of 12 sweets = 12 sweets -r 3
into 3 groups of equal size. = 4 sweets

Each group consists of 4 sweets. I of 12 sweets =2x4 sweets
^ of 12 sweets = 4 sweets = 8 sweets.
So, I of 12 sweets =2x4 sweets
= 8 sweets.