Topics
5. Fractions
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United States of AmericaUT
Grade 4

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.3

Understand a fraction a/b with a > 1 as a sum of fractions 1/b. In other words, any fraction is a sum of unit fractions.

4.NF.3.a

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

4.NF.3.d

Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators.

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