re..
merci pour l'énoncé - plus simple pour les calculs - tu pourras vérifier les tiens
A = (7+9) / 36 = 16/36 = 4x4/4x9 = 4/9
B = 3/4 - 10/4 + 14/4 = 7/4
C = 50/60 - 45/60 - 24/60 + 24/60 = 5/60 = 5x1/5x12 = 1/12
D = 4/11 x (-22/15) = - (4x2x11) / (11x15) = -8/15
E = 3/2 - (2x5) / (3x3) = 3/2 - 10/9 = 27/18 - 20/18 = 7/18
F = 3x5/6 = 5/2
4/3 x 6 = 8
donc on a 5/2 - 8 + 3/2 = 5/2 - 16/2 + 5/2 = -8
G = ( (15+7) / 3 ) (( 56 - 5 ) / 7 )
= 22/3 x (51/7) = 22 x 51 / 3 x 7 = 22 x 3 x 17 / 3 x 7 = 375 / 7
et le dernier H = 1 - 1 / (3/2) = 1 - 2/3 = 1/3