Adding and Subtracting Fractions

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Objective

I can add and subtract fractions with different denominators.

Part 1 of 3

Key concepts

3 concepts

  1. 1

    Before adding or subtracting fractions with different denominators, you need to find a common denominator.

  2. 2

    To make equivalent fractions, multiply the numerator and denominator by the same number.

  3. 3

    When adding or subtracting fractions with a common denominator, only add or subtract the numerators; the denominator stays the same.

Part 2 of 3

Practice

7 questions

1

What must you do before you can add or subtract fractions with different denominators?

2

Explain how to convert 2/5 to an equivalent fraction with a denominator of 10.

Part 3 of 3

Exit ticket

Quick comprehension check

Solve: ⅗ + ⅕ - ½. Show all steps.

Sample answer included in the free materials

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

  • Teacher Guide

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