Adding Mixed Numbers

6th Grade•55 minutes

Learning Objective

I can add mixed numbers with unlike denominators.

When adding mixed numbers, you can add the whole numbers and fractions separately.

To add fractions, they must have the same denominator, which is the least common multiple of the original denominators.

After adding, simplify the fraction and write the final answer as a mixed number.

This lesson includes 12 practice questions to reinforce learning.

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1. What is the first step in adding mixed numbers with unlike denominators?

2. Find the least common multiple of 8 and 12.

3. Rewrite the fractions 2/3 and 1/4 with a common denominator.

...and 9 more questions

Adding mixed numbers with unlike denominators | Fractions | Pre-Algebra | Khan Academy

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