The expression $\frac{20+16 \times 20}{20 \times 16}$ equals
(A) 20
(B) 276
(C) 21
(D) $\frac{9}{4}$
(E) $\frac{17}{16}$
Evaluating, $\frac{20+16 \times 20}{20 \times 16}=\frac{20+320}{320}=\frac{340}{320}=\frac{17}{16}$.

Alternatively, we could notice that each of the numerator and denominator is a multiple of 20 , and so $\frac{20+16 \times 20}{20 \times 16}=\frac{20(1+16)}{20 \times 16}=\frac{1+16}{16}=\frac{17}{16}$.

ANSWER: (E)