Выполните действия: 5 2/3+(1-6/7).

\[5\frac{2}{3} + \left( 1 - \frac{6}{7} \right) = 5\frac{2^{\backslash 7}}{3} + \frac{1^{\backslash 3}}{7} =\]

\[= 5\frac{14}{21} + \frac{3}{21} = 5\frac{17}{21}.\]