Sagot :
L = (3/24 + 14/24) x (6/5 x 15/4)
= 17/24 x 90/20
= 17/24 x 9/2
= 153/48 = 51/16
= 17/24 x 90/20
= 17/24 x 9/2
= 153/48 = 51/16
le calcul est juste mais il faut encore le simplifier :
51/16 = 3 + 3/16 = 3,1875
51/16 = 3 + 3/16 = 3,1875