16. Вычислите: \(\left(\frac{12-76}{81}:\frac{64}{9}\right)\cdot\frac{9}{37}\).

\(\frac{12-76}{81}=\frac{-64}{81}\).

\(\left(\frac{-64}{81}:\frac{64}{9}\right)\cdot\frac{9}{37}=\frac{-64}{81}\cdot\frac{9}{64}\cdot\frac{9}{37}=-\frac{1}{37}\).

Ответ: \(-\frac{1}{37}\).