Introducting fractions

Fractions
Scary?
No!
We use fractions every day ……

Fractions
Numerator

3
4
Denominator

Fractions

How many pieces altogether?

Fractions

10

Fractions
How many pieces have I got?

10

Fractions
How many pieces have I got?

7
10

Fractions
Colour in the right fraction for each shape

4
7
2
7
6
7

Fractions
4
12

7
14

3
8

Fractions
Identify right fraction for each shape

Questions
What fraction of snowmen have green hats?

Understanding equivalent
fractions

Are they equivalent fractions?

3 1
12 4

Yes they are
equivalent fractions.

3 1
12 4

Are they equivalent fractions?

2 1
5 3

No, they are not equal.
They are not equivalent fractions.

2 1
5 3

Can you work out a
strategy for deciding
whether they are
equal?

What ever you do to the top number . .
You must do to the bottom number.
divide by 5

5 1
20 5
divide by 5

What ever you do to the top number . .
You must do to the bottom number.
multiply by 3

3 9
5 15
multiply by 3

Sometimes you might need to work out
equivalent fractions in
three steps.

48 6 3
64 8 4

Finding the fraction
of a whole number

Calculate a fraction of a whole
number

Example :
To find 1 of 20
4

1
4
of 20
so

20 divided by 4
equals 5

2
6
of 30 10
30 6 5
5 X 2 = 10
and another example

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