Adding Unlike Fractions

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Objective

I can add fractions with different bottom numbers by changing them to have the same bottom number.

Part 1 of 3

Warm-up video

Khan Academy · 5:39Vetted channel

We don't generate video — this one is by Khan Academy 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 we need to find a common denominator before adding fractions with different denominators.

2

What is a common multiple of 3 and 5? Explain how knowing this helps you add fractions with denominators of 3 and 5.

Part 3 of 3

Exit ticket

Quick comprehension check

Solve: ⅓ + ¼ = ? Show your work. Solve: ⅖ + ⅙ = ? 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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