Réponses

  • Utilisateur Brainly
2013-11-18T21:02:40+01:00
calculer
a= 1/2+1/3+1/6
 =3/6+2/6+1/6
 =6/6
 =1

b=1/3+1/4+1/5
  =20/60+15/60+12/60
  =47/60

c=1/2+1/3+1/10
  =30/60+20/60+6/60
  =56/60
  =14/15
2013-11-18T21:27:33+01:00