$\dfrac{2}{-9}\times\dfrac{2}{-5}$ =

$\dfrac{9}{2}\times\dfrac{11}{19}$ =

$5 \times\dfrac{6}{-15}$ =

$\dfrac{1}{4}\times\dfrac{17}{3}$ =

$4 \times\dfrac{14}{28}$ =

$\dfrac{19}{34}\times 1$ =

$\dfrac{5}{13}\times\dfrac{17}{10}$ =

$\dfrac{11}{17}\times\dfrac{5}{2}$ =

$\dfrac{6}{7}\times\dfrac{13}{4}$ =

$\dfrac{15}{4}\times\dfrac{7}{10}$ =