\[x = - 3;\ \ \ \ \ y = 0,3:\]
\[\frac{\text{xy}}{x - 2y} = \frac{- 3 \cdot 0,3}{- 3 - 2 \cdot 0,3} = \frac{- 0,9}{- 3 - 0,6} =\]
\[= \frac{- 0,9}{- 3,6} = \frac{9}{36} = \frac{1}{4}.\]