Add or Subtract $\frac{9}{10}-\frac{7}{12}$ A) $\frac{1}{24}$ B) $\frac{1}{30}$ C) $\frac{19}{60}$ D) $\frac{2}{11}$

Multiple Choice

Add or subtract. Write the answer in lowest terms.
- $\frac{9}{10}-\frac{7}{12}$

A) $\frac{1}{24}$
B) $\frac{1}{30}$
C) $\frac{19}{60}$
D) $\frac{2}{11}$