Réponses

2013-05-06T17:48:49+02:00

2445 = 1 x 1725 = 720

1725 = 2 x 720 + 285

720 = 2 x 285 + 150

285 = 1 x 150 + 135

150 = 1 x 135 + 15

135 = 9 x 15 +0

donc PGCD = 15

 

1725/2445 = 115/163

 

1725/2445 - 110/163 = 115/163 - 110/163 = 5/163