Bonjour !
A = 5/4 - 3/16
A = 20/16 - 3/16
A = 17/16
B = 9/10 + -5/2
B = 9/10 - 25/10
B = -16/10
B = -8/5
C = 1 - 17/15
C = 15/15 - 17/15
C = -2/15
D = 3 + -7/5 - 17/20
D = 60/20 - 28/20 - 17/20
D = 15/20
D = 3/4
E = -1,3/-8 + 23/-1,6
E = 2,08/-12,8 + 184/-12,8
E = 186,08/-12,8
F = -4 + 16/3 - (-11/12)
F = -48/12 + 64/12 + 11/12
F = 27/12
F = 9/4
J'espère t'avoir aidé. Bon courage !
