\[- 9,2 - 5\frac{2}{3} = - 9\frac{2}{10} - 5\frac{2}{3} =\]
\[= - 9\frac{1^{\backslash 3}}{5} - 5\frac{2^{\backslash 5}}{3} =\]
\[= - 9\frac{3}{15} - 5\frac{10}{15} = - 14\frac{13}{15}.\]