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

$\dfrac{29}{16}+\dfrac{6}{16}$ =

$\dfrac{6}{10}+\dfrac{-3}{20}$ =

$4-\dfrac{38}{9}$ =

$\dfrac{-25}{24}+\dfrac{6}{8}$ =

$\dfrac{6}{7}+\dfrac{7}{21}$ =

$\dfrac{1}{5}+\dfrac{25}{15}$ =

$2-\dfrac{4}{9}$ =

$\dfrac{7}{8}+\dfrac{5}{3}$ =

$\dfrac{2}{9}+\dfrac{11}{5}$ =