Bonjour :)
Réponse en explications étape par étape :
- Question : Effectuer les calculs suivants :
A = 1/3 * - 4/5
A = - 4/15
B = (2, 2)/5 * - 3/5
B = - 6,6/25
B = (- 6,6 * 5)/(5 * 5)
B = - 33/125
C = - 10/3 * - 5/7
C = 50/21
D = - 8/3 * 3/4 * 5/7
D = - 24/12 * 5/7
D = - 120/84
D = - (12 * 10)/(12 * 7)
D = - 10/7
E = 2/15 * - 13/7
E = - 26/105
F = - 1,2 * 3/25
F = - 3,6/25
F = - (3,6 * 5)/(25 * 5)
F = - 18/125
G = 7/8 * (- 3) * 5/4
G = - 21/8 * 5/4
G = - 105/32
H = 2/3 * - 3/2 * 1/2
H = - 6/6 * 1/2
H = - 1 * 1/2
H = - 1/2
Voilà