Add and Subtract Fractions with
the Same Denominator
To add and subtract fractions with the same denominators.
1) Add or subtract. Use the fraction bars to help (you may not need all the bars).
If the answer is an improper fraction, convert to a whole or mixed number.
a) 3 + 2 =
6 6
b) 5 + 7 =
9 9
c) 6 + 8 =
7 7
d) 13 - 4 =
3 3
e) 23 - 5 =
4 4
f) 21 - 6 =
8 8
Maths | Fractions | Add and Subtract Fractions | Lesson 1 of
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9: Add and Subtract Fractions Same Denominator
Add and Subtract Fractions with
the Same Denominator
To add and subtract fractions with the same denominators.
2) Add or subtract. If the answer is an improper fraction, convert to a whole or mixed number.
a) 4 + 6 = b) 5 + 2 =
9 9 3 3
c) 13 - 2 = d)
17 4
- =
4 4 6 6
3) Fill in the missing numerators
a) 5 + 2 = 11 b) 7 + 2 = 15 = 1 6
8 8 8 9 9 9 9
c) 12 - 2 = 2 d) 14 - 2 = 9 = 2 6
5 5 5 4 4 4 4
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9: Add and Subtract Fractions Same Denominator
Add and Subtract Fractions with
the Same Denominator Answers
1)
a) 3 + 2 = 5 b) 5 + 7 =
12 3 1
= 1 (or 1 )
6 6 6 9 9 9 9 3
14 9
c) 6 + 8 = = 2 d) 13 - 4 = = 3
7 7 7 3 3 3
e) 23 - 5 = 18 = 4 2 (or 4 1 ) f) 21 - 6 = 15 = 1 7
4 4 4 4 2 8 8 8 8
2)
a) 4 + 6 = 10 = 1 1 b) 5 + 2 = 7 = 2 1
9 9 9 9 3 3 3 3
c) 13 - 2 = 11 = 2 3 d)
17 4 13
- = = 2
1
4 4 4 4 6 6 6 6
3)
a) 5 + 6 = 11 b) 7 + 8 = 15 = 1 6
8 8 8 9 9 9 9
c) 12 - 10 = 2 d) 14 - 5 = 9 = 2 1
5 5 5 4 4 4 4
Maths | Fractions | Add and Subtract Fractions | Lesson 1 of
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9: Add and Subtract Fractions Same Denominator
Add and Subtract Fractions with
the Same Denominator
To add and subtract fractions with the same denominators.
1) If the answer is an improper fraction, convert to a whole or mixed number.
Draw your own fraction bars to help if you need.
a) 5 + 4 = b) 2 + 2 =
8 8 3 3
c) 18 + 3 = d) 9 + 3 =
4 4 5 5
e) 18 - 10 = f) 13 - 11 =
7 7 9 9
g) 15 - 12 = h) 8 - 1 =
4 4 3 3
i) 3 + 5 + 4 = j) 13 + 5 + 7 =
7 7 7 4 4 4
k) 11 + 6 - 2 = l) 8 + 3 - 5 =
5 5 5 4 4 4
Maths | Fractions | Add and Subtract Fractions | Lesson 1 of
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9: Add and Subtract Fractions Same Denominator
Add and Subtract Fractions with
the Same Denominator
To add and subtract fractions with the same denominators.
2) Fill in the missing numerators.
a) 5 + 2 = 13 b) 14 + 7 = 16 = 1 6
7 7 7 10 10 10 10
c) 8 + 2 + 2 = 3 d) 4 + 7 + 1 = 2 2
5 5 5 3 3 3 3
e) 11 - 2 = 8 f) 4 - 7 = 13 = 2 3
7 7 7 5 5 5 5
g) 19 - 3 - 8 = 1 1 h) 22 - 7 = 13 = 1 5
8 8 8 8 10 10 10 10
3) Write 3 addition calculations that would make this calculation correct.
5 2 24
+ =
7 7 7
a) b) c)
4) Write 3 addition calculations that would make this calculation correct.
5 2 13
- =
6 6 6
a) b) c)
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9: Add and Subtract Fractions Same Denominator
Add and Subtract Fractions with
the Same Denominator Answers
1)
9 1 4 1
a) 5 + 4 = = 1 b) 2 + 2 = = 1
8 8 8 8 3 3 3 3
21 1 12 2
c) 18 + 3 = = 5 d) 9 + 3 = = 2
4 4 4 4 5 5 5 5
2
e) 18 - 10 = 8 = 1 1 f) 13 - 11 =
7 7 7 7 9 9 9
3
g) 15 - 12 = h) 8 - 1 = 7 = 2 1
4 4 4 3 3 3 3
12 5 25 1
i) 3 + 5 + 4 = = 1 j) 13 + 5 + 7 = = 6
7 7 7 7 7 4 4 4 4 4
15 6 2 1
k) 11 + 6 - 2 = = 3 l) 8 + 3 - 5 = = 1 (or 1 )
5 5 5 5 4 4 4 4 4 2
2)
a) 5 + 8 = 13 b) 9 + 7 = 16 = 1 6
7 7 7 10 10 10 10
c) 8 + 5 + 2 = 3 d) 4 + 3 + 1 = 2 2
5 5 5 3 3 3 3
e) 11 - 3 = 8 f) 20 - 7 = 13 = 2 3
7 7 7 5 5 5 5
g) 19 - 3 - 7 = 9 = 1 1 h) 22 - 7 = 15 = 1 5
8 8 8 8 8 10 10 10 10
3) Multiple possible answers, for example:
a) 10 + 14 = 24 b) 12 + 12 = 24 c) 5 + 19 = 24
7 7 7 7 7 7 7 7 7
4) Multiple possible answers, for example:
a) 20 - 7 = 13 b) 15 - 2 = 13 c) 14 - 1 = 13
6 6 6 6 6 6 6 6 6
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9: Add and Subtract Fractions Same Denominator
