Add and Subtract Fractions with Common Denominators

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

 $\frac{1}{3\ }+\frac{1}{3}=\frac{2}{3}$  

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

 $\frac{2}{6}+\frac{2}{6}=\frac{2}{3}$  

 $\frac{9}{12}-\frac{3}{12}=\frac{6}{12}$ 

 $\frac{9}{12}+\frac{3}{12}=\frac{12}{12}$ 

 $\frac{9}{12}-\frac{6}{12}=\frac{3}{12}$ 

 $\frac{3}{4}+\frac{1}{4}=\frac{1}{2}$ 

 $\frac{1}{4}+\frac{2}{4}=\frac{3}{4}$ 

 $\frac{2}{4}-\frac{1}{4}=\frac{1}{4}$ 

 $\frac{1}{4}+\frac{1}{2}=\frac{1}{6}$ 

 $\frac{1}{4}+\frac{2}{4}=\frac{3}{8}$ 

 $\frac{3}{4}+\frac{1}{4}=\frac{4}{4}$ 

 $\frac{3}{4}+\frac{2}{4}=\frac{5}{4}$ 

 $\frac{3}{4}-\frac{1}{4}=\frac{1}{2}$ 

 $\frac{3}{4}-\frac{2}{4}=\frac{2}{4}$ 

 $\frac{1}{6}+\frac{2}{3}=\frac{5}{6}$ 

 $\frac{1}{4}+\frac{4}{6}=\frac{5}{6}$ 

 $\frac{1}{6}+\frac{4}{6}=\frac{5}{12}$ 

 $\frac{1}{6}+\frac{4}{6}=\frac{5}{6}$ 

 $\frac{3}{5}-\frac{1}{5}=\frac{2}{0}$ 

 $\frac{3}{5}+\frac{1}{5}=\frac{2}{5}$ 

 $\frac{2}{5}+\frac{1}{5}=\frac{3}{5}$ 

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

 $1-\frac{1}{3}=\frac{1}{3}$ 

 $\frac{3}{3}+\frac{1}{3}=\frac{4}{3}$ 

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

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

 $\frac{8}{12}+\frac{3}{12}=\frac{11}{12}$ 

 $\frac{8}{12}-\frac{3}{12}=\frac{5}{12}$ 

 $\frac{8}{12}+\frac{3}{12}=\frac{11}{24}$ 

 $\frac{8}{10}+\frac{1}{4}=\frac{11}{12}$  

 $\frac{5}{6}-\frac{2}{6}=\frac{3}{0}$ 

 $\frac{5}{6}-\frac{2}{6}=\frac{1}{2}$ 

 $\frac{5}{6}+\frac{2}{6}=\frac{7}{6}$ 

 $\frac{5}{6}+\frac{2}{6}=\frac{1}{2}$ 

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

 $\frac{2}{10}+\frac{2}{5}=\frac{4}{5}$  

 $\frac{2}{5}+\frac{2}{5}=\frac{4}{5}$  

 $\frac{3}{5}+\frac{3}{5}=\frac{4}{5}$