Réponses

  • Utilisateur Brainly
2014-02-05T20:31:14+01:00
A) on cherche les diviseurs des nombres et on prend le plus grand en commun

1356 = 1*1356
1356 = 2*678
1356 = 3*452
1356 = 4*339
1356 = 6*226
1356 = 12*113

4972 = 1*4972
4972 = 2*2486
4972 = 4*1243
4972 = 11*452
4972 = 22*26
4972 = 44*113

PGCD (1356;4972) = 452

 \frac{1356}{4972} =  \frac{1356/452}{4972/452} =  \frac{3}{11}
2014-02-05T20:36:18+01:00
PGCD de 1356 et 4972.

1356/2 = 678
678/2 = 339
339/3 = 113

4972/2 = 2486
2486/2 = 1243
1243/11 = 113

Leur PGCD est 113*2*2 = 452.

1356/4972 = 12/44 = 3/11