Réponses

2013-04-26T14:41:47+02:00

C= 5/36 - (-7/12)

C= 5/36+ 7/12

C= 5/36 + 7x3/12x3

C= 5/36 + 21/36

C= 26/36

2013-04-26T14:42:17+02:00

C= 5/36 - (-7/12)

= 5/36+ 7/12

= 5/36 + 7x3/12x3

= 5/36 + 21/36

= 26/36

 

voila