Topics
7. Add and subtract fractions
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United States of AmericaAZ
5th Grade

7.04 Add and subtract fractions

Lesson
Practice
Lesson

Are you ready?

If we can find equivalent fractions it will help us in this lesson. Let's try a problem to review. 

Fill in the blank to find an equivalent fraction to $\frac{1}{3}$13​:

  1. $\frac{1}{3}=\frac{\editable{}}{6}$13​=6​

Learn

This video shows how to add and subtract fractions by finding common denominators. 

Apply

QUESTION 1

Find the value of $\frac{2}{3}+\frac{5}{12}$23​+512​.

 

QUESTION 2

Find the value of $\frac{6}{7}-\frac{5}{42}$67​−542​.

Write your answer in its simplest form.

 

Remember!

Before we add or subtract fractions, we must first make sure that the fractions have the same denominator. 

 

Outcomes

5.NF.A.1

Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators (e.G., 2/3 + 5/4 = 8/12 + 15/12 = 23/12).

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