$\dfrac{2}{11}\times\dfrac{4}{6}$ =

$\dfrac{13}{21}\times\dfrac{9}{8}$ =

$\dfrac{11}{4}\times\dfrac{7}{6}$ =

$\dfrac{3}{5}\times\dfrac{15}{10}$ =

$\dfrac{-5}{2}\times\dfrac{-11}{3}$ =

$\dfrac{2}{13}\times\dfrac{11}{3}$ =

$6 \times\dfrac{19}{-38}$ =

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

$\dfrac{3}{38}\times 13$ =

$5 \times\dfrac{23}{23}$ =