Réponses

2014-09-06T13:08:03+02:00
40/9 - (4/3 - 2/9)
= 40/9 - (4 x 3 / 3 x 3 - 2/9)
= 40/9 - (12/9 - 2/9)
= 40/9 - 10/9
= 30/ 9
= 3 x 10 / 3 x 3
= 10/3