$\dfrac{10}{15}\times\dfrac{11}{5}$ =

$\dfrac{7}{30}\times 7$ =

$\dfrac{9}{-5}\times\dfrac{3}{-10}$ =

$\dfrac{23}{13}\times\dfrac{2}{3}$ =

$\dfrac{5}{10}\times\dfrac{23}{5}$ =

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

$7 \times\dfrac{35}{-49}$ =

$\dfrac{3}{2}\times\dfrac{5}{16}$ =

$5 \times\dfrac{25}{25}$ =

$\dfrac{4}{3}\times\dfrac{5}{6}$ =