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

$(\dfrac{-8}{9})\times(\dfrac{9}{8}-(\dfrac{-3}{7}))$=?

$\bigg((\dfrac{-6}{7})-(\dfrac{-1}{4})\bigg):\dfrac{1}{2}$=?

$(\dfrac{-8}{9})\times((\dfrac{-9}{4})-(\dfrac{-3}{5}))$=?

$(\dfrac{-9}{4})-\dfrac{5}{8}\times(\dfrac{-3}{2})$=?

$(\dfrac{-7}{2})\times\bigg(\dfrac{8}{7}+(\dfrac{-5}{4})\bigg)$=?

$\bigg((\dfrac{-8}{9})+(\dfrac{-3}{8})\bigg)\times\dfrac{3}{2}$=?

$\bigg((\dfrac{-5}{7})+\dfrac{7}{4}\bigg)\times(\dfrac{-2}{3})$=?

$\bigg((\dfrac{-3}{2})+(\dfrac{-4}{5})\bigg)\times\dfrac{7}{9}$=?

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