Calcule puis simplifie si possible :
$A = \dfrac{4}{3}-\dfrac{-3}{6}$
$B = \dfrac{-2}{3}+\dfrac{3}{4}$
$C = 1 - \dfrac{5}{-7}$
$D = \dfrac{-34}{11}+3$
$E = \dfrac{-7}{25}+\dfrac{3}{15}$
$F = \dfrac{1}{2}-\dfrac{-1}{6}+\dfrac{4}{9}+\dfrac{5}{-6}$
$G = \dfrac{4}{7}-\left(\dfrac{2}{7}+\dfrac{1}{5}\right)$
$A = \dfrac{8}{6}+\dfrac{3}{6}=\dfrac{11}{6}$
$B = \dfrac{-8}{12}+\dfrac{9}{12}=\dfrac{1}{12}$
$C = 1 - \dfrac{5}{-7}=\dfrac{7}{7}+\dfrac{5}{7}=\dfrac{12}{7}$
$D = \dfrac{-34}{11}+\dfrac{33}{11}= -\dfrac{1}{11}$
$E = \dfrac{-21}{75}+\dfrac{15}{75}= \dfrac{-6}{75}$
$E=\dfrac{-2}{25}$
$F = \dfrac{9}{18}+\dfrac{3}{18}+\dfrac{8}{18}-\dfrac{15}{18}$
$F =\dfrac{5}{18}$
$G = \dfrac{4}{7}-\left(\dfrac{10}{35}+\dfrac{7}{35}\right)$
$G =\dfrac{4}{7}-\dfrac{17}{35}$
$G =\dfrac{20}{35}-\dfrac{17}{35}$
$G =\dfrac{3}{35}$