Bonjour
E déjà fait sur ton autre poste
F = (3/5 - 3/10) x (2/9 + 1/15)
F = [(3 x 2) / (5 x 2) - 3/10] x [(2 x 5) / (9 x 5) + (1 x 3) / (15 x 3)]
F = (6/10 - 3/10) x (10/45 + 3/45)
F = 3/10 x 13/45
F = 39/450
F = (3 x 13) / (3 x 150)
F = 13/150
J = 9/8 x 5/2 - 7/4 x 3/4
J = 45/16 - 21/16
J = 24/16
J = (8 x 3) / (8 x 2)
J = 3/2.
