$\bigg(\dfrac{9}{2}-\dfrac{7}{4}\bigg):(\dfrac{-2}{7})$=?

$\dfrac{9}{7}-(\dfrac{-5}{9})\times\dfrac{8}{7}$=?

$\bigg((\dfrac{-7}{5})+\dfrac{1}{3}\bigg)\times(\dfrac{-5}{8})$=?

$(\dfrac{-6}{5})+\dfrac{2}{7}\times\dfrac{3}{2}$=?

$\bigg((\dfrac{-1}{2})+(\dfrac{-1}{3})\bigg)\times(\dfrac{-9}{4})$=?

$\dfrac{4}{7}+\dfrac{2}{3}\times\dfrac{7}{5}$=?

$\bigg((\dfrac{-1}{2})+\dfrac{5}{6}\bigg)\times(\dfrac{-3}{5})$=?

$\dfrac{2}{9}-(\dfrac{-4}{9})\times(\dfrac{-5}{2})$=?

$\bigg(\dfrac{3}{8}-\dfrac{2}{3}\bigg):\dfrac{4}{5}$=?

$\bigg((\dfrac{-5}{4})+\dfrac{9}{4}\bigg)\times(\dfrac{-5}{8})$=?