Adding and Subtracting Fractions

To add or subtract, two fractions must have...

• a whole number

• unlike terms.

• common denominators.

• the same numerators.

Evaluate the expression:  $\frac{2}{3}+\frac{1}{6}$  

• 1

•  $\frac{5}{6}$  

•  $\frac{7}{8}$  

•  $\frac{3}{3}$  

Find the difference:  $\frac{5}{9}-\frac{3}{9}$  

• one ninth

• two ninths

• 8 ninths

• 3 ninths

 $\frac{4}{7}+\frac{1}{3}=$  

•  $\frac{17}{21}$  

•  $\frac{19}{21}$  

•  $\frac{5}{10}$  

•  $\frac{5}{21}$  

 $2\ \frac{3}{4}-\frac{1}{2}=$  

•  $1\ \frac{1}{2}$  

•  $2\ \frac{1}{2}$  

•  $1\frac{1}{4}$  

•  $2\frac{1}{4}$  

 $14\ \frac{3}{8}+2\ \frac{6}{8}=$  

•  $17$  

•  $16\ \frac{1}{8}$  

•  $12\ \frac{3}{8}$  

•  $17\ \frac{1}{8}$  

 $4\ -\ 2\ \frac{1}{3}=$  

•  $1\ \frac{2}{3}$  

•  $2\ \frac{2}{3}$  

•  $2\ \frac{1}{3}$  

•  $6\frac{1}{3}$  

Reduce completely:  $\frac{24}{30}$  

• 12/15

• 4/5

• 8/10

• 24/30

Reduce completely:  $\frac{18}{24}$  

• 2/3

• 3/4

• 6/8

• 9/12

Reduce completely:  $\frac{11}{32}$  

• 1/3

• 5/16

• 6/16

• 11/32