Bonjour
Calculer ;
L = -7/5 : (2/9 - 7/18)
L = -7/5 : [(2 x 2)/(9 x 2) - 7/18]
L = -7/5 : [4/18 - 7/18]
L = -7/5 : (-3/18)
L = -7/5 : (-3/(3 x 6))
L = -7/5 : -1/6
L = -7/5 x (-6)
L = 42/5
M = (4/5 + (-3/2)) : (-9/4 - 1/6)
M = [(4 x 2)/(5 x 2) - (3 x 5)/(2 x 5)] : [(-9 x 3)/(4 x 3) - (1 x 2)/(6 x 2)]
M = (8/10 - 15/10) : (-27/12 - 2/12)
M = (-7/10) : (-29/12)
M = -7/10 x (-12/29)
M = 7/29 x 12/10
M = 7/29 x (2 x 6)/(2 x 5)
M = 7/29 x 6/5
M = 42/145
