a) x supra 25 1/25 2/25 7/25
b) x supra 18 1/18 13/18 5/18
c) 17 supra x 17/5 17/19 17/37
d) 24 supra x 24/19 24/37 24/53
e) 2 supra x+1 2/(4+1) 2/(8+1) 2/(10+1)
f) 3x supra 4 3*19/4 3*11/4 3*5/4
g) x-1 supra 6 (8-1)/6 (12-1)/6 (14-1)/6
h) x+1 supra 5 (6+1)/5 (10+1)/5 (12+1)/5