Выполните действия: (4 7/8-7 1/6)*(2 1/20-0,45).

\[\left( 4\frac{7}{8} - 7\frac{1}{6} \right) \cdot \left( 2\frac{1}{20} - 0,45 \right) =\]

\[= - \left( 7\frac{4}{24} - 4\frac{21}{24} \right) \cdot \left( 2\frac{1}{20} - \frac{9}{20} \right) =\]

\[= - \left( 6\frac{28}{24} - 4\frac{21}{24} \right) \cdot \left( 1\frac{21}{20} - \frac{9}{20} \right) =\]

\[= - 2\frac{7}{24} \cdot 1\frac{12}{20} = - \frac{55 \cdot 32}{24 \cdot 20} =\]

\[= - \frac{11}{3} = - 3\frac{2}{3}\]