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Meilleure réponse !
  • Utilisateur Brainly
2014-09-07T12:32:17+02:00
B= 1/3 - 4/3 = - 3/3 = - 1

C= - 3/4 + 5/12 = - 9/12 + 5/12 = - 4/12 = - 1/3

D= 3/5 + 2/3  9/15 + 10/15 = 19/15

E= 3 - 2/7 = 21/7 - 2/7 = 19/7