Bonjour,
50)
A= 7/18
B= 36/13
C= 122/52 = 61/26
51)
A = 21/16
B= 8/5
C= 15/20= 3/4
52)
A= 22/29
B= 12/15 = 4/5
C= 12/3 = 4
