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 we need to find a common denominator before adding fractions with different denominators.

2. What is the "easiest common denominator" method, as described in the video, and how does it help us add fractions with unlike denominators?

3. Use the "easiest common denominator" method to find the common denominator for the fractions ¼ and ⅔. What whole fractions would you multiply each of these original fractions by?

...and 4 more questions

Educational Video

Math Antics - Common Denominator ECD

mathantics

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