$\dfrac{13}{6}+\dfrac{-6}{6}$ =

$\dfrac{9}{40}+\dfrac{12}{40}$ =

$\dfrac{-41}{22}+\dfrac{6}{2}$ =

$3+\dfrac{-59}{33}$ =

$\dfrac{-49}{14}+\dfrac{2}{7}$ =

$\dfrac{4}{4}-\dfrac{7}{12}$ =

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

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

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

$\dfrac{-2}{15}+\dfrac{6}{3}$ =