Adding Fractions with Unlike Denominators

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Objective

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

Part 1 of 3

Warm-up video

Math with Mr. J · 5:42Vetted channel

We don't generate video — this one is by Math with Mr. J on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

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

2

What is the least common multiple (LCM) and how does it help when adding fractions with unlike denominators?

Part 3 of 3

Exit ticket

Quick comprehension check

Add ⅖ + ⅑. Show your work. Add ⅓ + ⁵⁄₁₂. Show your work.

Sample answer included in the free materials

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Teacher guide, student handout, and slides — free, in Google Docs format

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