Réponse :
Explications étape par étape
Bjr,
Exercice 33
A)
(4/3)/ (8/5) = 4/3* 5/8 = 20/24 = 10/12 = 5/6
7/3 -5/6 = 14/6 -5/6 = 8/6 = 4/3
B)
-4/9*1/5 = -4/45
(-4/45 )/(3/7 )= -4/45 *7/3 = -28/135
C)
(-8/3) / (-5/6) = -8/3*6/-5 = -48/- 15 = 48/15 = 16/3
exercice 34)
L)
2/9 -7/18 = 4/18 -7/18 = -3/18
-7/15 * 18/-3 = -126/-45 = 126/45 = 42/15= 14/5
M)
4/5 +(-3/2) = 8/10 +(-15/10 )= -7/10
(-9/4) -1/6 = -54/24 - 4/24 = -58/24 = -29/12
(-7/10 )/(-29/12= -7/10 * 12/-29 = 84/290= 42/145
