$\dfrac{-30}{6} = $

$\dfrac{51}{-3} = $

$ \dfrac{-75}{-5} = $

$ \dfrac{-40}{-10} = $

$\dfrac{2}{-4} = $

$\dfrac{57}{3} = $

$\dfrac{9,6}{-4} = $

$ \dfrac{-6}{-3} = $

$(-18) \div3 = $

$(-9,6) \div4 = $