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In this worksheet, students add fractions with the same denominator.

Key stage:  KS 2

Curriculum topic:   Number: Fractions and Decimals

Difficulty level:

### QUESTION 1 of 10

When we add or subtract two fractions, they must be the same type.

This means that they must have the same bottom number, which we call the denominator.

Example

Work out:

 3 + 4 15 15

Both fractions have the same denominator. They are both 15ths.

 3 + 4 15 15

We can simply add the top numbers to get 3 + 4 = 7.

 = 3 + 4 15

 = 7 15

Remember that the bottom number stays the same.

Write the missing number.

 3 + 8 = ? 15 15 15

Write the missing number.

 3 + 5 = 8 11 11 ?

Write the missing number.

 3 + 5 = ? 12 12 12

Write the missing number.

 3 + 1 = ? 5 5 5

Write the missing number.

 3 + 4 = 7 10 10 ?

Write the missing number.

 6 + 3 = ? 15 15 15

Write the missing number.

 3 + 3 = 6 7 7 ?

Write the missing number.

 9 + 3 = ? 14 14 14

Write the missing number.

 3 + 2 = ? 6 6 6

Write the missing number.

 3 + 15 = 18 24 24 ?
• Question 1

Write the missing number.

 3 + 8 = ? 15 15 15
11
EDDIE SAYS
3 + 8 = 11
• Question 2

Write the missing number.

 3 + 5 = 8 11 11 ?
11
EDDIE SAYS
11ths added to 11ths stay as 11ths.
• Question 3

Write the missing number.

 3 + 5 = ? 12 12 12
8
EDDIE SAYS
3 + 5 = 8
• Question 4

Write the missing number.

 3 + 1 = ? 5 5 5
4
EDDIE SAYS
3 + 1 = 4
• Question 5

Write the missing number.

 3 + 4 = 7 10 10 ?
10
EDDIE SAYS
10ths added to 10ths stay as 10ths.
• Question 6

Write the missing number.

 6 + 3 = ? 15 15 15
9
EDDIE SAYS
6 + 3 = 9
• Question 7

Write the missing number.

 3 + 3 = 6 7 7 ?
7
EDDIE SAYS
7ths added to 7ths stay as 7ths.
• Question 8

Write the missing number.

 9 + 3 = ? 14 14 14
12
EDDIE SAYS
9 + 3 = 12
• Question 9

Write the missing number.

 3 + 2 = ? 6 6 6
5
EDDIE SAYS
3 + 2 = 5
• Question 10

Write the missing number.

 3 + 15 = 18 24 24 ?
24
EDDIE SAYS
24ths added to 24ths stay as 24ths.
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