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Unlike Denominators Fractions Practice
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Unlike Denominators Fractions Practice
Find common denominators before adding or subtracting. Simplify your answers when you can. Show your work for calculation and story problems.
Build Equivalent Fractions
1.What is the least common denominator of 4 and 6?
- 10
- 12
- 18
- 24
2.Write an equivalent fraction for 2/5 with a denominator of 20.
3.Write an equivalent fraction for 3/8 with a denominator of 24.
4.What is the least common denominator of 6 and 9?
- 15
- 18
- 36
- 54
5.Match each fraction to an equivalent fraction with the stated denominator.
- 1/3, denominator 12
- 3/5, denominator 20
- 2/7, denominator 21
- 5/6, denominator 18
- 6/21
- 3/12
- 15/18
- 12/20
Add and Subtract
6.Add 1/4 + 1/6. Give your answer in simplest form.
7.Subtract 3/4 − 1/6. Give your answer in simplest form.
8.Add 2/5 + 1/10. Give your answer in simplest form.
9.Subtract 5/6 − 1/4. Give your answer in simplest form.
10.Add 3/8 + 1/3. Give your answer in simplest form.
11.Subtract 7/10 − 1/5. Give your answer in simplest form.
Fractions in Stories
12.Sofia walked 2/3 mile in the morning and 1/4 mile in the afternoon. How many miles did she walk altogether? Write the answer in simplest form.
13.A pitcher held 5/6 gallon of lemonade. Andre poured out 1/4 gallon. How much lemonade remains? Write the answer in simplest form.
14.A recipe uses 1/2 cup of oats and 2/3 cup of raisins. How many cups of these ingredients are used altogether? Write the answer in simplest form.
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