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Unlike-denominator fraction addition worksheets

Each question adds two proper fractions with different denominators, so learners practise finding a common denominator first.

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Unlike-denominator fraction addition worksheets
Name: ____________________Date: ____________________
1.11/12 + 5/9 =
2.7/10 + 3/6 =
3.2/3 + 3/7 =
4.3/4 + 1/3 =
5.4/7 + 1/4 =
6.7/8 + 1/3 =
7.4/5 + 2/4 =
8.1/3 + 5/6 =
9.1/5 + 3/4 =
10.3/12 + 5/6 =
11.3/8 + 4/5 =
12.5/10 + 8/9 =
13.1/6 + 2/6 =
14.5/11 + 1/8 =
15.1/5 + 3/6 =
16.6/8 + 3/8 =
17.1/2 + 3/6 =
18.5/8 + 5/12 =
19.4/9 + 2/10 =
20.3/8 + 1/2 =
Answer key
1. 53/36
2. 6/5
3. 23/21
4. 13/12
5. 23/28
6. 29/24
7. 13/10
8. 7/6
9. 19/20
10. 13/12
11. 47/40
12. 25/18
13. 1/2
14. 51/88
15. 7/10
16. 9/8
17. 1
18. 25/24
19. 29/45
20. 7/8
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What this worksheet includes

Each question adds two proper fractions with different denominators, so learners practise finding a common denominator first.

  • 20 questions by default
  • Denominators range from 2 to 12
  • The two denominators differ
  • Answers are reduced to simplest form

Choosing a practice session

  • Common-denominator practice
  • Preparing for fraction comparison
  • Grade 4–6 fraction review

Content reviewGeneration rules and examples reviewed 29 September 2026. Found a problem? Send a correction

03

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Before or after this skill

Same-denominator fraction addition worksheetsGenerate 20 printable same-denominator fraction addition questions with simplified answers.Same-denominator fraction subtraction worksheetsCreate 20 printable same-denominator fraction subtraction questions with simplified answers.Percent and ratio worksheetsCreate 20 printable questions on finding percentages and simplifying ratios.
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