1 3 19)-1:(-3)=5 5

\[-1\frac{1}{5} : \left(-3\frac{3}{5}\right) = -\frac{1 \cdot 5 + 1}{5} : \left(-\frac{3 \cdot 5 + 3}{5}\right) = -\frac{6}{5} : \left(-\frac{18}{5}\right) = \frac{6}{5} \cdot \frac{5}{18} = \frac{6 \cdot 5}{5 \cdot 18} = \frac{1}{3}\]