Réponses

Meilleure réponse !
2014-05-06T16:16:12+02:00
A = 7/5 -7/3x1514
a =7/5 -5/2
a = 14/10 -25/10
a = -11/10

b = 8/5 -3/4 :9/8
b = 8/5 -3/4x8/9
b = 8/5 -2/3
b = 24/15 -10/15
b =14/15

c = 8/3-2/5  / 7/5
c = (40/15 -6/15 )x 5/7
c = 34/15 x 5/7
c = 34/3x1/7
c =34/21


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  • Utilisateur Brainly
2014-05-06T16:33:29+02:00