$\dfrac{-9}{17}\times\dfrac{3}{-2}$ =

$\dfrac{10}{6}\times\dfrac{7}{8}$ =

$\dfrac{7}{9}\times 2$ =

$-3 \times\dfrac{6}{9}$ =

$\dfrac{9}{5}\times\dfrac{7}{6}$ =

$\dfrac{11}{3}\times\dfrac{8}{21}$ =

$\dfrac{23}{4}\times\dfrac{2}{4}$ =

$13 \times\dfrac{6}{39}$ =

$\dfrac{2}{5}\times\dfrac{7}{3}$ =

$\dfrac{7}{9}\times\dfrac{5}{4}$ =