Réponses

2014-01-15T17:36:07+01:00


A= 7/3 - 2/3 : 8/7

A= 7/3 - 2/3 x 7/8

A= 7/3 - 2/3 x 7/2x4

A= 7/3 - 7/12

A= 28/12 - 7/12

A= 21/12

A= 3x7/3x4

A= 7/4