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

$\dfrac{15}{18}\times\dfrac{7}{11}$ =

$17 \times\dfrac{2}{17}$ =

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

$9 \times\dfrac{13}{-39}$ =

$\dfrac{2}{77}\times 3$ =

$\dfrac{19}{4}\times\dfrac{1}{7}$ =

$\dfrac{11}{6}\times\dfrac{14}{13}$ =

$\dfrac{11}{13}\times\dfrac{15}{10}$ =

$\dfrac{3}{5}\times\dfrac{13}{2}$ =