\[\frac{9,62 - 5\frac{5}{6} \cdot \frac{3}{5}}{1,9 + 1,7} = \frac{9,62 - \frac{35}{6} \cdot \frac{3}{5}}{3,6} =\]
\[= \frac{9,62 - \frac{7}{2}}{3,6} = \frac{9,62 - 3,5}{3,6} =\]
\[= \frac{6,12}{3,6} = \frac{612}{360} = \frac{306}{180} =\]
\[= \frac{153}{90} = \frac{17}{10} = 1,7.\]