Réponses

2014-02-27T10:20:02+01:00
2014-02-27T10:47:17+01:00


A=4/3 + 3/10 / 5/2 - 2/5

A= 40/30 + 9/30 / 25/10 - 4/10

A=49/30 / 21/10

A= 49/30 × 10/20

A= 49 / 3 x 20

A= 49/60