9 -20 -24-4-(-6)

$$9) \frac{-20}{-24 - 4 - (-6)} = \frac{-20}{-24 - 4 + 6} = \frac{-20}{-28 + 6} = \frac{-20}{-22} = \frac{10}{11}$$

Ответ: 10/11