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Adding Fractions

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

'Adding Fractions' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Fractions and Decimals

Curriculum subtopic:  Add/Subtract Fractions

Difficulty level:  

Worksheet Overview

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

 

Answer

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
CORRECT ANSWER
11
EDDIE SAYS
3 + 8 = 11
  • Question 2

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

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

Write the missing number.

 

3  +  15  =  18
24 24 ?
CORRECT ANSWER
24
EDDIE SAYS
24ths added to 24ths stay as 24ths.
---- OR ----

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