Sagot :
Réponse :
Bonjour :)
(Rappelles toi, a/b X c/d = (aXc) / (bXd) et a/b / c/d = a/b X d/c = (aXd) / (bXc)
A = (2/3) / (4/5)
= 2/3 X 5/4
= 10/12 = 5/6
___________
B = -2/3 / 5
= -2/3 X 1/5
= -2/15
___________
C = - 3/2 / 5
= - 3/2 X 1/5
= -3/10
___________
D = 3 / (2/5)
= 3 X 5/2
= 15/2
__________
E = 3/2 / 5
= 3/2 X 1/5
= 3/10
__________
F = (-3/2) / (-5/4)
= (3/2) / (5/4) (Parce -a/-b = a/b)
= 3/2 X 4/5
= 6/5
__________
G = 2/3 X 1/5
= 2/15
__________
H = 3/2 X 4/5
= 6/5
_________
I = 3/2 X 1/5
= 3/10
_________
J = 3 X 5/2
= 15/2
________
K = -3/2 X 1/5
= -3/10
________
L = 2/3 X 5/4
= 5/6
Bonjour,
Calculer:
A= (2/3) / (4/5)= (2/3) x (5/4)= (2x5)/(3x4)= (1x5)/(3x2)= 5/6 simplifié 4 et 2
B= (-2/3)5= (-2x5)/5=(-2/3)x(5/1)= (-2x5)/3= -10/3
C= (-3/2)/5= -3/2 x 1/5= (-3x1)/(2x5)= -3/10
D= 3/(2/5)= 3x 5/2= (3x5)/2= 15/2
E même raisonnement que le C
F même raisonnement que le A
G= (-2x1)/(3x5)= -2/15
Même raisonnement que G pour le H et I
J = (3x5)/2= 15/2
K= (-2x1)/(2x5)= ...calcule puis simplifie
Pareil pour le L.