Fraction operations Midterm review

Find the sum.

 $\frac{4}{5}\ +\ \frac{1}{3}$  

•  $\frac{5}{8}$  

•  $1\ \frac{2}{15}$  

•  $\frac{7}{15}$  

•  $\frac{2}{15}$  

Answer explanation

Example: Remember when you have an improper fraction the numerator goes inside the house of division and the denominator stays outside the house of division.

Find the sum.

 $\frac{1}{4}\ +\ \frac{3}{6}=$  

•  $\frac{9}{12}$  

•  $\frac{3}{10}$  

•  $\frac{3}{12}$  

• 1

Answer explanation

Similar Example:

 $\frac{8}{9}\ -\ \frac{1}{3}\ =\$  

•  $\frac{7}{6}$  

•  $\frac{5}{9}$  

•  $\frac{2}{3}$  

•  $\frac{8}{27}$  

What must you have to in order to add and subtract fractions?

• common numerators

• Different numerators

• common denominators

• different denominators

What is  $\frac{8}{9}$  -  $\frac{5}{6}$ =  ?

•  $\frac{6}{7}$  

•  $\frac{3}{4}$  

•  $\frac{1}{18}$  

•  $\frac{10}{12}$  

Simplify
 $\frac{1}{2}\cdot\frac{4}{5}$  

•  $\frac{4}{10}$  

•  $\frac{2}{5}$  

•  $\frac{8}{5}$  

•  $\frac{4}{5}$  

Simplify
 $\frac{3}{8}\div\frac{2}{3}$  

•  $\frac{9}{16}$  

•  $\frac{6}{24}$  

•  $\frac{1}{4}$  

•  $\frac{3}{8}$  

Simplify. Write your answer as a mixed number when necessary.
 $\frac{9}{10}\div\frac{1}{4}$  

•  $\frac{36}{10}$  

•  $3\ \frac{6}{10}$  

•  $\frac{9}{40}$  

•  $3\ \frac{3}{5}$  

 $\frac{1}{4}\times\frac{1}{2}=$  

•  $\frac{1}{8}$  

•  $8$  

•  $\frac{3}{4}$  

•  $\frac{1}{2}$  

Multiply.

• 3 1/10

• 85/20

• 4 5/20

• 4 1/4