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5. Fractions
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United States of AmericaAZ
4th Grade

5.05 Add and subtract fractions

Lesson
Practice
Lesson

Are you ready?

Can you use fraction bars to write fractions?

Which of the following shows $\frac{1}{4}$14​ on the fraction bar?

  1.   
    A
      
    B
      
    C
      
    D

 

Learn

This video introduces the idea of adding and subtracting fractions.

Apply

question 1

Find the value of $\frac{3}{4}-\frac{1}{4}$34​−14​.

 

Learn

What if the fractions have a value greater than $1$1? Yes, we can still add or subtract them.

Apply

Question 2

Find the value of $\frac{2}{4}+\frac{3}{4}$24​+34​.

 

Remember!

Adding or subtracting fractions with the same denominator is very similar to adding or subtracting with whole numbers. The difference is we are counting fraction parts instead.

Outcomes

4.NF.B.3

Understand a fraction a/b with a > 1 as a sum of unit fractions (1/b).

4.NF.B.3a

A. Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

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