Bonsoir !
A = [tex]\dfrac{7}{6}+\dfrac{2}{3}[/tex]
[tex]\dfrac{2}{3}=\dfrac{2 \times 2}{3 \times 2}=\dfrac{4}{6}[/tex]
[tex]\dfrac{7}{6}+\dfrac{4}{6} = \boxed{\dfrac{11}{6}}[/tex]
B = [tex]\dfrac{3}{5}+\dfrac{11}{10}[/tex]
[tex]\dfrac{3}{5}=\dfrac{3 \times 2}{5 \times 2} = \dfrac{6}{10}[/tex]
[tex]\dfrac{6}{10}+\dfrac{11}{10}=\boxed{\dfrac{17}{10}}[/tex]
C = [tex]\dfrac{8}{9}+\dfrac{1}{3}[/tex]
[tex]\dfrac{1}{3}=\dfrac{1 \times 3}{3 \times 3}=\dfrac{3}{9}[/tex]
[tex]\dfrac{8}{9}+\dfrac{3}{9}=\boxed{\dfrac{11}{9}}[/tex]
D = [tex]\dfrac{17}{13}+\dfrac{11}{65}[/tex]
[tex]\dfrac{17}{13}=\dfrac{17 \times 5}{13 \times 5}=\dfrac{85}{65}[/tex]
[tex]\dfrac{85}{65}+\dfrac{11}{65}=\boxed{\dfrac{96}{65}}[/tex]
Bonne soirée ! :-)
