Réponse:
Bonsoir déjà.
A = (2/3) + (7/3) x (-4/9)
A = (2/3) + (-28/27)
A = (18/27) - (28/27)
A = -10/27
B = (2 - (5/8)) / (3/4)
B = (16/8 - 5/8) / (3/4)
B = (11/8) / (3/4)
B = 11/8 * 4/3
B = 44/24
B = 22/12
B = 11/6
C = ((4/5) - 2) * ((3/4) - (2/3))
C = ((4/5) - (10/5)) * ((9/12) - (8/12))
C = -6/5 * 1/12
C = -6/60
C = -1/10
D = 2/13 - 5/13 / 10/16
D = 2/13 - ((5/13) * (10/16))
D = 2/13 - 50/208
D = 32/208 - 50/208
D = -18/208
D = -9/104
