Précision
(x/y) = fraction
A = (5/8) / ( (1/4) - 7)
A = (5/8) / ( (1/4) - (7/1) )
A = (5/8) / ( (1/4) - (7 x 4/1 x 4) )
A = (5/8) / ( (1/4) - (28/4) )
A = (5/8) / (-27 / 4)
A = (5/8) / (-27x2/4x2)
A = (5/8) / (-54/8)
A = (5/8) x (8/-54)
A = (40/-432)
A = (5/54)
B = (9/11) - (4/11) x (3/5)
B = (9/11) - (12/55)
B = (9x5/11x5) - (12/55)
B = (45/55) - (12/55)
B = (33/55)
B = (3/5)
Désolé mais je n'ai plus assez de temps d'écran pour répondre a la dernière question...
