Calculer E= (1/7-5)/(1/7+5) F=(3/5-5/3)/7/2-(5-2/3) Merci

Bonjour.

E = (1/7-5)×(1/7+5)

E = -34/7×(1/7+5)

E = -34/7×36/7

E = - 1224/49

F = (3/5-5/3)×7/2-(5-2/3)

F = -16/15×7/2-(5-2/3)

F = -16/15×7/2-13/3

F = -8/15×7-13/3

F = -56/15-13/3

F = - 121/15

/ = division.

Bonne soirée.