\[3\frac{5}{6}\ :3,2 = \frac{23}{6}\ :\frac{32}{10} = \frac{23}{6}\ :\frac{16}{5} =\]
\[= \frac{23}{6} \cdot \frac{5}{16} = \frac{115}{96} = 1\frac{19}{96}.\]