Add and Simplify $\frac{1}{10}+\frac{9}{10}$ A) 1
B) $\frac{1}{2}$ C) $\frac{10}{10}$ D) $\frac{10}{20}$

Add and simplify. Write the answer as an improper fraction as needed.
- $\frac{1}{10}+\frac{9}{10}$

A) 1
B) $\frac{1}{2}$
C) $\frac{10}{10}$
D) $\frac{10}{20}$