Bonjour
A = 42/75 - (- 22/25)
A = 42/75 + (22 x 3) / (25 x 3)
A = 42/75 + 66/75
A = 108/75
A = (3 x 36) / (3 x 25)
A = 36/25
B = 85/4 + 25/- 5
B = (85 x 5) / (4 x 5) - (25 x 4) / (5 x 4)
B= 425/20 - 100/20
B = 325/20
B = (5 x 65) / (5 x 4)
B = 65/4
C = - 1/25 - 2
C = - 1/25 - (2 x 25) / (1 x 25)
C = - 1/25 - 50/25
C = - 51/25
