a= 2/11 + -3/5 b = -4/5+3 c = -5/21-2/14 d=9/7-5/7x2/3 e=(1/5-2/7)x(5/9-1/3) f = -1/2:5/1 g=-3/5:1/5 h = -9/2-1/5:2/7-3/10 a=7/8+1:6/5+-1/15 b = 7/8(6/5--1/15)
Mathématiques
nafy
Question
a= 2/11 + -3/5
b = -4/5+3
c = -5/21-2/14
d=9/7-5/7x2/3
e=(1/5-2/7)x(5/9-1/3)
f = -1/2:5/1
g=-3/5:1/5
h = -9/2-1/5:2/7-3/10
a=7/8+1:6/5+-1/15
b = 7/8(6/5--1/15)
c = 7/8-6/5:7/8+6/5
b = -4/5+3
c = -5/21-2/14
d=9/7-5/7x2/3
e=(1/5-2/7)x(5/9-1/3)
f = -1/2:5/1
g=-3/5:1/5
h = -9/2-1/5:2/7-3/10
a=7/8+1:6/5+-1/15
b = 7/8(6/5--1/15)
c = 7/8-6/5:7/8+6/5
1 Réponse
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1. Réponse anylor
a) - 23/55
b) 11/5
c)- 8/21
d) 17/21
e) -2/102
f)-1/10
g) -3
h)329
a)225/136
b)tu as mis 2 fois le signe -, c'est normal ?
b = 7/8(6/5--1/15) - - -> + b = 7/8(6/5+1/15) =67/60
c) =13/83