Réponses

2013-05-05T22:50:24+02:00

A= 3/7 - 15/7 : 5/24

A=3/7- 15/7 x 24/5

A=3/7 - (3x24)/7

A=3/7 - 72/7

A= - 69/7

2013-05-05T23:01:51+02:00

A= 3/7 - 15/7 : 5/24

A=3/7- 15/7 x 24/5

A=3/7 - (3x24)/7

A=3/7 - 72/7

A= - 69/7

je trouve pareil