Réponses

2013-04-21T16:03:03+02:00

5/14 +11/28 =10/28 + 11/28 = 21/28 = 3/4

 

98/21=14/3

 

7/6+57/36 =42/36 + 57/36 = 99/36 = 11/6

 

1- 1/3 = 3/3 - 1/3 = 2/3

 

En espérant t'avoir aidé.