Réponses

2014-01-15T22:02:09+01:00
Bonsoir

A = (3/5 : 4 ) + ( 1/3 : 9)
(3/5 x 1/4) + (1/3 x 1/9)
3/20 + 1/27
71/540 + 20/540 = 91/540