Вычислите: ((12−76)/81 : 64/9)·9/37.

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

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

\(-\frac{1}{9}\cdot\frac{9}{37}=-\frac{1}{37}\).

Ответ: \(-\frac{1}{37}\)