$(\dfrac{-7}{8})-(\dfrac{-4}{9})\times(\dfrac{-3}{5})$=?

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

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

$\bigg((\dfrac{-6}{7})-(\dfrac{-9}{7})\bigg)\times\dfrac{5}{9}$=?

$\bigg((\dfrac{-3}{5})-\dfrac{7}{5}\bigg):(\dfrac{-5}{9})$=?

$\dfrac{2}{7}-\dfrac{1}{2}\times(\dfrac{-7}{9})$=?

$\dfrac{7}{6}-\dfrac{5}{2}\times\dfrac{9}{8}$=?

$\bigg(\dfrac{1}{2}+(\dfrac{-6}{7})\bigg)\times(\dfrac{-1}{3})$=?

$\bigg((\dfrac{-2}{3})-\dfrac{6}{5}\bigg)\times(\dfrac{-2}{9})$=?

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