Adding Fractions with Unlike Denominators

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Objective

I can add fractions with different denominators by finding a common denominator and then adding the numerators.

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

What is a common denominator for ½ and ⅓? Explain how you found it.

2

Convert ¾ to an equivalent fraction with a denominator of 12. Show your work.

Part 3 of 3

Exit ticket

Quick comprehension check

Calculate ⁷/₁₀ + ¹/₄. Show each step, including finding a common denominator. Determine the sum of ⁵/₆ and ²/₉. Show your work, including finding a common denominator.

Sample answer included in the free materials

Get the materials

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

  • Teacher Guide

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