Learning ObjectivesIn the starter activity • Pupils should be able to revise what

they have in previous lessons

By the end of this lesson• Pupils should be able to able to add,

subtract, multiply and divide fractions • They will be able to complete related

questions from their text books

STARTERSTARTER STARTERSTARTER

Give a fraction equivalent toGive a fraction equivalent to

7

6

Simplify

27

15

Write as a percentage

100

87

Write as a fraction

7%

Convert it into a mixed number

7

25

Convert it into an improper fraction

5

36

Adding Fractions

+4

1

4

2=

4

3

Why Not ???????????

4

1

4

2

+ 8

3=

Remember

When you add fractions The denominators must be the

same

• Complete Exercise 15:7 • Q 1-5• Page 352• Time allotted: 2 minutes

Pupils should be able to:

What Happens if

• The two bottom numbers are different

6

1

3

2

6

1

3

2

2

2

6

1

6

4

6

5

• Complete Exercise 15:7 • Q 6-11• Page 352• Time allotted: 5 minutes

Pupils should be able to:

4

1

3

1

Find LCM (Lowest Common

Multiple)

4

1

3

1 Multiples of 3 and

4Multiples of 3 3,6,9,12,15,18,21,……..

Multiples of 44,8,12,16,20,24,…………

4

1

3

1

Change the denominators into 12

4 3 3

4

1

3

1

4

12

3

12

4

12

34 112

12

Subtracting Fractions

7

2

7

5

7

3

Different Denominators

3

1

12

5

3

1

12

5

4

4

12

4

12

5

12

45

• Complete Exercise 15:8 • Q 2, 4, 5, 8• Page 352• Time allotted: 5 minutes

Pupils should be able to:

Multiplying Fractions

3

1

6

1

1 of the 3 parts is Green of the box is Green

The box is split in half This split the green part in half. Now only of the

whole box is green

3

1

6

1

2

13

1

This means that

of is

6

1

OR

2

1

3

1

6

1

Question 5

9

5

218

210

18

10

3

2

6

5

27

4

7

4 2

1

7

8

• Complete Exercise 15:9 • Q 1-9• Page 353• Time allotted: 10 minutes

Pupils should be able to:

Dividing Fractions

8

5

4

3

Method• Invert the second fraction and them

multiply

8

5

4

3

4

3

5

8 5

6

20

24

5

11

• Complete Exercise 15:10 • Questions as many as they

can • Page 353• Time allotted: 10 minutes

Pupils should be able to: