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Add and Subtract Simple Fractions

In this worksheet, students improve their skills at adding and subtracting simple fractions.

'Add and Subtract Simple Fractions' worksheet

Key stage:  KS 2

Curriculum topic:  Maths and Numerical Reasoning

Curriculum subtopic:  Mixed Problems

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you must add and subtract fractions.

 

Example

To add or subtract two fractions, the denominators must be the same or made the same.  Here the thirds are changed to sixths before you can add.

 

1
3
 + 
1
6
   =   
2
6
 + 
1
6
   =   
3
6
 or  
1
2

 

Remember

 

NEVER, EVER ADD DENOMINATORS

 

5
6
 - 
4
9
   =   
15
18
 - 
8
18
   =   
7
18

To find the common denominator, find the lowest common multiple of the denominators.

4
8
+
1
12
=
A

B
+
C

D
=
E

F
 ABCDEF
26
2
24
12
14

To find the common denominator, find the lowest common multiple of the denominators.

3
8
+
1
6
=
A

B
+
C

D
=
E

F
 ABCDEF
26
4
24
13
9

To find the common denominator, find the lowest common multiple of the denominators.

1
10
+
1
7
=
A

B
+
C

D
=
E

F
 ABCDEF
7
70
10
50
17

To find the common denominator, find the lowest common multiple of the denominators.

3
11
1
6
=
A

B
C

D
=
E

F
 ABCDEF
18
77
11
66
7

To find the common denominator, find the lowest common multiple of the denominators.

2
10
+
1
6
=
A

B
+
C

D
=
E

F
 ABCDEF
5
30
40
6
11

To find the common denominator, find the lowest common multiple of the denominators.

3
7
+
5
12
=
A

B
+
C

D
=
E

F
 ABCDEF
71
85
84
36
35

To find the common denominator, find the lowest common multiple of the denominators.

5
8
+
5
7
=
A

B
+
C

D
=
E

F
 ABCDEF
40
75
35
56
66

To find the common denominator, find the lowest common multiple of the denominators.

5
6
+
5
10
=
A

B
+
C

D
=
E

F
 ABCDEF
40
15
30
25
36

To find the common denominator, find the lowest common multiple of the denominators.

4
12
3
11
=
A

B
C

D
=
E

F
 ABCDEF
8
44
131
36
132

To find the common denominator, find the lowest common multiple of the denominators.

1
12
+
3
11
=
A

B
+
C

D
=
E

F
 ABCDEF
47
11
131
36
132
  • Question 1

To find the common denominator, find the lowest common multiple of the denominators.

4
8
+
1
12
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
26
2
24
12
14
  • Question 2

To find the common denominator, find the lowest common multiple of the denominators.

3
8
+
1
6
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
26
4
24
13
9
  • Question 3

To find the common denominator, find the lowest common multiple of the denominators.

1
10
+
1
7
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
7
70
10
50
17
  • Question 4

To find the common denominator, find the lowest common multiple of the denominators.

3
11
1
6
=
A

B
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
18
77
11
66
7
  • Question 5

To find the common denominator, find the lowest common multiple of the denominators.

2
10
+
1
6
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
5
30
40
6
11
  • Question 6

To find the common denominator, find the lowest common multiple of the denominators.

3
7
+
5
12
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
71
85
84
36
35
  • Question 7

To find the common denominator, find the lowest common multiple of the denominators.

5
8
+
5
7
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
40
75
35
56
66
  • Question 8

To find the common denominator, find the lowest common multiple of the denominators.

5
6
+
5
10
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
40
15
30
25
36
  • Question 9

To find the common denominator, find the lowest common multiple of the denominators.

4
12
3
11
=
A

B
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
8
44
131
36
132
  • Question 10

To find the common denominator, find the lowest common multiple of the denominators.

1
12
+
3
11
=
A

B
+
C

D
=
E

F
CORRECT ANSWER
 ABCDEF
47
11
131
36
132
---- OR ----

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