$\dfrac{24}{40}+\dfrac{9}{40}$ =

$\dfrac{27}{44}-\dfrac{12}{44}$ =

$\dfrac{25}{6}+\dfrac{5}{3}$ =

$\dfrac{3}{14}+\dfrac{4}{7}$ =

$6+\dfrac{-99}{20}$ =

$\dfrac{-11}{24}+\dfrac{6}{8}$ =

$\dfrac{11}{7}+\dfrac{5}{3}$ =

$\dfrac{19}{18}+\dfrac{2}{6}$ =

$\dfrac{3}{4}+\dfrac{5}{11}$ =

$4-\dfrac{5}{2}$ =