MAFS.4.NF.2.3 Decompose a fraction into a sum of fractions

MAFS.4.NF.2.3 Decompose a fraction into a sum of fractions

Poll

What skill will you learn today?

• decompose a fraction into a sum of fractions

• Identify parallel and perpendicular lines

• Identify acute, obtuse, right angles

Different ways to represent

 $\frac{5}{8}$  

Represent   $\frac{5}{8}$  

 $\frac{2}{8}+\frac{3}{8}=$  

Multiple Choice

Represent  $\frac{5}{8}$ 



What is  $\frac{2}{8}+\frac{3}{8}=$  

•  $\frac{3}{8}$  

•  $\frac{2}{8}$  

•  $\frac{5}{8}$  

Represent   $\frac{5}{8}$ 

 $\frac{2}{8}+\frac{3}{8}=\frac{5}{8}$ 


Adding  $\frac{2}{8}$  and  $\frac{3}{8}$   represents  $\frac{5}{8}$  

Let's look at more ways to

represent  $\frac{5}{8}$  

Multiple Choice

 $\frac{5}{8}+\frac{3}{8}=\frac{5}{8}$ 
Does this equation represent  $\frac{5}{8}$  

• yes

• no

 $\frac{5}{8}+\frac{3}{8}=\frac{5}{8}$  because  $\frac{5}{8}+\frac{3}{8}=\frac{8}{8}$  

No, this statement does not represent  $\frac{5}{8}$ 

Represent  $\frac{5}{8}$  

Poll

Select the equations that show different ways to represent  $\frac{5}{8}$ 
 

•  $\frac{1}{8}+\frac{3}{8}+\frac{1}{8}=$  

•  $\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}=$  

Add 1+1+1+1+1

Multiple Choice

Solve.  $\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}=$  

•  $\frac{1}{8}$  

•  $\frac{4}{8}$  

•  $\frac{8}{1}$  

•  $\frac{5}{8}$  

Multiple Choice

Does  $\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}$ 

Represent  $\frac{5}{8}$  ?

• yes

• no

Multiple Select

Select all the equations that show different ways to represent  $\frac{5}{8}$  

•  $\frac{2}{8}+\frac{3}{8}=$  

•  $\frac{5}{8}+\frac{3}{8}=$  

•  $\frac{1}{8}+\frac{5}{8}=$  

•  $\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}+\frac{1}{8}=$  

Poll

Select numbers to represent   $\frac{5}{8}$  .

•  $\frac{1}{8}$  

•  $\frac{2}{8}$  

•  $\frac{3}{8}$  

•  $\frac{4}{8}$  

•  $\frac{5}{8}$