add and subtract fractions

 $\frac{1}{9}+\frac{2}{9}$  *type your response as n/d 

 $\frac{1}{9}-\frac{5}{9}$  *type your response as n/d 

 $\frac{1}{8}+\frac{1}{2}$   *type your response as n/d *simplify if needed!

 $\frac{5}{8}+\frac{1}{3}$     *type your response as n/d *simplify if needed! here's a hint: the LCD (least common denominator) is 24

 $\frac{1}{5}+\frac{1}{10}$   *type your response as n/d *simplify if needed!

 $\frac{1}{12}+\frac{3}{5}$   *type your response as n/d *hint: LCD is 60

 $\frac{12}{17}-\frac{1}{17}$   *type your response as n/d 

 $\frac{11}{12}-\frac{1}{3}$   *type your response as n/d 

 $\frac{1}{2}-\frac{1}{8}$   *type your response as n/d 

 $\frac{1}{3}+\frac{1}{4}+\ \frac{3}{8}$   *type your response as n/d *hint: LCD is 24