Adding Fractions with Unlike Denominators

Grade 645 minutes

Learning Objective

I can add fractions with different denominators by finding a common denominator.

Practice Questions

This lesson includes 7 practice questions to reinforce learning.

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1. Explain in your own words why it is necessary to find a common denominator before adding two fractions with different denominators.

2. What are equivalent fractions and how are they used when adding fractions with unlike denominators?

3. Use the "easiest common denominator" method (multiplying the denominators) to find the common denominator for the fractions ¼ and ⅔. What are the equivalent fractions after you find the common denominator?

...and 4 more questions

Educational Video

Math Antics - Common Denominator ECD

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