Composing & Decomposing Fractions

How can you decompose  $\frac{2}{8}$   into a sum of unit fractions?

•  $\frac{2}{8}+\frac{2}{8}$  

•  $\frac{1}{8}+\frac{1}{8}$  

•  $\frac{1}{8}+\frac{2}{8}$  

•  $\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}$  

Decompose the fraction $\frac{4}{8}$   into unit fractions.

•  $\frac{2}{8}+\frac{2}{8}$  

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

•  $\frac{3}{8}+\frac{1}{8}$  

• 4 + 8

What fraction is represented by the sum of  $\frac{1}{6}+\frac{1}{6}+\frac{1}{6}$ ?

•  $\frac{3}{6}$  

•  $\frac{2}{6}$  

•  $\frac{4}{6}$  

•  $\frac{3}{18}$  

 $\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}=?$  

•  $\frac{4}{6}$  

•  $\frac{4}{24}$  

•  $\frac{3}{6}$  

•  $\frac{6}{4}$  

 $\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=?$  

•  $\frac{3}{4}$  

•  $\frac{3}{12}$  

•  $\frac{4}{3}$  

•  $\frac{4}{4}$  

Which expression represents the shaded part of this figure?

•  $\frac{1}{4}+\frac{1}{4}+\frac{1}{4}$  

•  $\frac{1}{4}+\frac{1}{4}$  

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

•  $\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}$  

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

•  $\frac{1}{8}$  

•  $\frac{5}{8}$  

•  $\frac{5}{40}$  

•  $\frac{8}{5}$  

 $\frac{1}{3}+\frac{1}{3}+\frac{1}{3}=?\$  

•  $\frac{3}{3}\ or\ 1$  

•  $\frac{3}{9}$  

•  $\frac{5}{19}$  

•  $\frac{9}{3}$  

What is a denominator?

• the answer

• the bar that separated the top and bottom number

• the part that tells me how many parts I have

• the bottom number that tells us how many equal parts the whole is divided into

Which unit fraction representation matches the shaded portion of the figure?

• 1/2 + 1/2 = 2/2

• 1/4 + 1/4 + 1/4 + 1/4 = 4/4

• 1/6 + 1/6 = 2/6

• 2/6 + 4/6 = 6/6