Adding Fractions Practice Problems with Answers
Work through the five solved problems below, then generate unlimited addition problems with like and unlike denominators.
5 adding fractions problems with answers
Each one shows the answer and the working. Try it yourself first, then check.
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1.1/5 + 3/5
Answer: 4/5
Same denominator, so add numerators only: 1 + 3 = 4. The denominator stays 5.
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2.1/2 + 1/3
Answer: 5/6
The LCD of 2 and 3 is 6. Rewrite as 3/6 + 2/6 = 5/6, already in simplest form.
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3.3/8 + 1/4
Answer: 5/8
8 is already a multiple of 4, so only 1/4 changes: 1/4 = 2/8. Then 3/8 + 2/8 = 5/8.
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4.5/6 + 3/4
Answer: 19/12 (1 7/12)
The LCD of 6 and 4 is 12. Rewrite as 10/12 + 9/12 = 19/12, which is 1 whole and 7/12.
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5.2/9 + 5/6
Answer: 19/18 (1 1/18)
The LCD of 9 and 6 is 18. Rewrite as 4/18 + 15/18 = 19/18, or 1 1/18.
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Quick Tips
- Find a common denominator first
- Add only the numerators when denominators are the same
- Simplify your answer if possible
- Use the hint button if you're stuck
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Understanding Fraction Addition
How to Add Fractions
Adding fractions requires a few key steps:
- Check the denominators: Are they the same or different?
- Find a common denominator if the denominators are different
- Add the numerators while keeping the common denominator
- Simplify the result if possible
Example
Let's add 2/3 + 1/4:
- Different denominators, find LCD: 12
- Convert fractions: 2/3 = 8/12, 1/4 = 3/12
- Add numerators: 8 + 3 = 11
- Result: 11/12 (already simplified)