Réponse :
Explications étape par étape :
Bonjour,
C = -3/4 X 12
C =( -3X4 X3) / 4
C = -3 X 3
C = -9
D = 2 + 1/3
D = 6/3 + 1/3
D = 7/ 3
G = 12x / 15 X 5 / 3x
G = (3X 4x X5) / (3X5 X3x)
G = 4/3
H = 13/25 + 3/10 X2/5
H = 13/25 + (3X2)/(2X25)
H = 13/25 + 3/25
H = 16 / 25
K = (1+1/3) : (1-1/3)
K = 3/3 + 1/3) : (3/3 - 1/3)
K = 4/3 : 2/3
K = 4/3 X 3/2
K = 4/2
K = 2
L = -3/7 + 1/3 : 1/9
L= -3/7 + 1/3 X 9
L = -3/7 + 3
L = -3/7 + 21/7
L = 18/7