$\dfrac{4}{15}-\dfrac{20}{15}$ =

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

$\dfrac{2}{14}+\dfrac{1}{2}$ =

$\dfrac{5}{18}+\dfrac{2}{6}$ =

$6+\dfrac{-13}{4}$ =

$\dfrac{-3}{44}+\dfrac{3}{22}$ =

$\dfrac{2}{5}+\dfrac{11}{7}$ =

$\dfrac{3}{11}+\dfrac{7}{4}$ =

$\dfrac{-39}{20}+3$ =

$\dfrac{6}{6}+\dfrac{7}{18}$ =