Sagot :
Bonjour,
[tex]\dfrac{2}{3}+\dfrac{5}{7} =\dfrac{2*7}{3*7}+\dfrac{5*3}{7*3} =\dfrac{14}{21}+\dfrac{15}{21}=\dfrac{29}{21}[/tex]
Bonjour,
[tex]\dfrac{2}{3}+\dfrac{5}{7} =\dfrac{2*7}{3*7}+\dfrac{5*3}{7*3} =\dfrac{14}{21}+\dfrac{15}{21}=\dfrac{29}{21}[/tex]