Вычислите: -7/11*(-2/13)*11/21*(-26).

\[- \frac{7}{11} \cdot \left( - \frac{2}{13} \right) \cdot \frac{11}{21} \cdot ( - 26) =\]

\[= - \frac{7 \cdot 2 \cdot 11 \cdot 26}{11 \cdot 13 \cdot 21 \cdot 1} = - \frac{4}{3} =\]

\[= - 1\frac{1}{3}\]