$21 \times \dfrac{11}{3} = $

$\dfrac{3}{9} \times 24 = $

$\dfrac{5}{10} \times 4 = $

$\dfrac{2}{6} \times 30 = $

$\dfrac{2}{4} \times 12 = $

$81 \times \dfrac{2}{9} = $

$\dfrac{21}{7} \times 7 = $

$\dfrac{44}{4} \times 6 = $

$\dfrac{11}{5} \times 55 = $

$\dfrac{54}{6} \times 9 = $