Adding Fractions with Unlike Denominators
Practice adding fractions with unlike denominators using visual models and numerical methods.
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Adding Fractions with Unlike Denominators
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Read each question carefully and show your work. You may use the fraction bars to help you visualize the problem.
1. To add fractions with unlike denominators, you must first find a denominator.
2. When you multiply the denominator to find an equivalent fraction, you must also multiply the by the same number.
3. Shade the fraction bars to show 1/2 + 1/4. Then write the sum.
4. What is the least common denominator for 1/3 + 1/6?
3
6
9
18
5. What is the least common denominator for 1/2 + 2/5?
5
7
10
20
Find the sum. Show your work.
6. 1/3 + 1/6 =
7. 1/2 + 2/5 =
8. 1/4 + 1/8 =
9. When adding 1/2 and 1/3, the sum is 2/5.
True
False