Répondre :

winner123
Bonjour
1sur2 x 5sur6 x 3sur4 - 2sur3 x 1sur4 x 3sur4 - 1sur16 x 5sur3
= (1/2 x 5/6 x 3/4 ) - (2/3 x 1/4 x 3/4) - (1/16 x 5/3)
= 5/16 - 1/8 - 5/48
= 15/48 - 6/48 - 5/48
= 15/48 - 11/48 = 4/48 = 1/12

D'autres questions