$\dfrac{10}{14}+\dfrac{23}{14}$ =

$\dfrac{17}{30}+\dfrac{-28}{30}$ =

$\dfrac{3}{9}+\dfrac{1}{45}$ =

$\dfrac{23}{18}+\dfrac{6}{9}$ =

$\dfrac{4}{10}+\dfrac{-1}{20}$ =

$3-\dfrac{79}{30}$ =

$\dfrac{-10}{3}+5$ =

$\dfrac{11}{3}+\dfrac{2}{7}$ =

$\dfrac{1}{6}+\dfrac{2}{18}$ =

$\dfrac{7}{5}+\dfrac{11}{8}$ =