It is 17 : 10.
34/57 is in its simplest form.
43/34 is in its simplest form.
34 over 42 in simplest form = 17/21
5/34 is already in its simplest form
34 over 59
13/34
34 / 30 = 17 / 15 in its simplest form.
32/34 = 16/17
34/68 = 1/2
34/32 = 17/16
34/100 = 17/50