Réponse:
Bonjour, voici le raisonnement détaillé pour chaque calcul :
Explications étape par étape:
A = (-3/7)×(5/8)
A = -15/54
B = (9/11):(4/10)
B = (9/11)×(10/4)
B = (9×5×2)/(11×2×2)
B = (9×5)/(11×2)
B = 45/22
C = (42/18)×(-63/28)
C = (6×7×7×(-3)×3)/(6×3×7×4)
C = (7×(-3))/4
C = -21/4
D = (-25/24)/(15/(-8))
D = (-25/24)×(-8/15)
D = (-5×5×(-8))/(8×3×5×3)
D = 5/(3×3)
D = 5/9
E = (-3/4)+(1/12)×(-5/2)
E = (-3/4)+(-5/24)
E = (-3/4)-(5/24)
E = (-18/24)-(5/24)
E = -23/24
F = ((8/7)-(6/5))/(10/7)+2
F = ((40/35)-(42/35))/(10/7)+2
F = (-2/35)/(10/7)+2
F = (-2/35)×(7/10)+2
F = (-1×2×7)/(7×5×5×2)+2
F = -1/25+2
F = -1/25+50/25
F = 49/25
Voilà. J'espère t'avoir aidé.
Bonne journée.
