Express the sentence as a proportion.
Two thirds is to one fifth as two fifths is to one ninth.

• A. $\frac{\frac{2}{3}}{\frac{1}{5}}=\frac{\frac{1}{9}}{\frac{2}{5}}$
• B. $\frac{\frac{2}{5}}{\frac{1}{9}}=\frac{\frac{2}{3}}{\frac{1}{5}}$
• C. $\frac{2}{3}=\frac{1}{5}=\frac{2}{5}=\frac{1}{9}$
• D. $\frac{\frac{2}{3}}{\frac{1}{5}}=\frac{\frac{2}{5}}{\frac{1}{9}}$

Answer: (D)