GoMath Ch. 7 Mid-Chapter Checkpoint

A ____________ always has a numerator of 1.

• fraction

• unit fraction

• simplest form

A number that names part of a whole is a ________________.

• fraction

• unit fraction

• simplest form

Which answer choice correctly shows the fraction  $\frac{3}{10}$  as a sum of unit fractions?

•  $\frac{1}{10}\ +\ \frac{1}{10}\ +\ \frac{1}{10}$  

•  $\frac{2}{10}\ +\ \frac{1}{10}$  

•  $\frac{1}{10}\ +\ \frac{2}{10}$  

Which answer choice correctly shows the fraction  $\frac{6}{6}$ as a sum of unit fractions?

•  $\frac{1}{6}\ +\ \frac{5}{6}$  

•  $\frac{1}{6}+\frac{1}{6}\ +\frac{1}{6}\ +\frac{1}{6}\ +\frac{1}{6}\ +\frac{1}{6}\$  

•  $\frac{5}{6}\ +\ \frac{1}{6}$  

Use the model to write an equation.

• $\frac{5}{5}-\frac{2}{5}=\frac{3}{5}$

• $\frac{3}{5}-\frac{2}{5}=\frac{1}{5}$
  

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

Use the model to write an equation.

• $\frac{5}{6}-\frac{1}{6}=\frac{4}{6}$

• $\frac{5}{6}+\frac{1}{6}=\frac{6}{6}$

• $\frac{6}{6}-\frac{1}{6}=\frac{5}{6}$

Use the model to solve the equation  $\frac{3}{8}\ +\ \frac{2}{8}\ =$  ____

•  $\frac{1}{8}$  
  

•  $\frac{5}{8}$ 
  

•  $\frac{6}{8}$  

Use the model to solve the equation  $\frac{4}{10}\ +\ \frac{5}{10}\ =$  _______

•  $\frac{1}{10}$  

•  $\frac{8}{10}$  

•  $\frac{9}{10}$  

Find the sum or difference of  $\frac{9}{12}-\frac{7}{12}$ = ______

•  $\frac{2}{12}$  or  $\frac{1}{6}$  

•  $\frac{5}{12}$  

•  $\frac{6}{12}\$  or  $\frac{1}{2}$  

Find the sum or difference of       $\frac{2}{3}+\frac{1}{3}$ = ______
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•  $\frac{1}{3}$  

•  $\frac{2}{3}$  

•  $\frac{3}{3}$