$\dfrac{24}{28}+\dfrac{1}{28}$ =

$\dfrac{-3}{60}-\dfrac{4}{60}$ =

$\dfrac{1}{9}+\dfrac{2}{45}$ =

$\dfrac{-5}{28}+\dfrac{4}{14}$ =

$\dfrac{13}{22}+1$ =

$\dfrac{-20}{33}+\dfrac{2}{3}$ =

$3-\dfrac{51}{28}$ =

$\dfrac{2}{5}+\dfrac{11}{3}$ =

$\dfrac{2}{3}+\dfrac{6}{21}$ =

$\dfrac{11}{5}+\dfrac{3}{2}$ =