$\dfrac{2}{33}\times\dfrac{10}{15}$ =

$\dfrac{-7}{5}\times\dfrac{-11}{2}$ =

$\dfrac{13}{36}\times 1$ =

$14 \times\dfrac{11}{-77}$ =

$\dfrac{9}{14}\times\dfrac{6}{4}$ =

$\dfrac{7}{19}\times\dfrac{3}{2}$ =

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

$\dfrac{6}{5}\times\dfrac{2}{7}$ =

$\dfrac{5}{10}\times\dfrac{15}{17}$ =

$\dfrac{2}{7}\times\dfrac{4}{7}$ =