$\frac{1}{9}+\frac{5}{9}+\frac{2}{9}=n$

$\frac{2}{5}+\frac{2}{6}+\frac{2}{9}=n$

$\frac{8}{12}+\frac{7}{9}+\frac{8}{10}=n$

subtract the numerators then subtract the common denominator

subtract the numerators then copy the common denominator

subtract the common denominator then copy the numerators

None of the above

subtract the numerators then subtract the denominators

subtract the numerators then copy the denominators

subtract the denominators then copy the numerators

Change the fractions to dissimilar fractions first then follow the process of subtracting similar fractions.

 $\frac{1}{9}+\frac{5}{9}+\frac{2}{9}=\frac{8}{9}$ 

 $\frac{2}{5}+\frac{2}{6}+\frac{2}{9}=\frac{2}{20}$ 

 $\frac{8}{10}+\frac{7}{10}+\frac{8}{10}=\frac{23}{30}$ 

 $\frac{2}{9}+\frac{4}{9}+\frac{1}{9}=\frac{7}{9}$ 

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

 $\frac{3}{10}+\frac{3}{10}+\frac{3}{10}=\frac{9}{10}$ 

 $1\frac{2}{8}$ 

 $1\frac{2}{3}$ 

 $1\frac{1}{10}$