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5.05 Add and subtract fractions

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}$3414.

 

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 fractions 1/b. For example, 4/5 = 1/5 +1/5 + 1/5 + 1/5.

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