0.26 has the same meaning as 26/100. That can't be reduced very far, but it can be reduced.
0.26 = 26/100 Divide top and bottom by 2
13/50 That's as far down as we can go.
Note: any decimal with 2 digits can always be put over 100 and reduced if possible.
0.33 = 33 / 100
0.16 = 16 / 100 = 4/25 (Divide by 4) which is all you can do.
0.01 = 1 /100
Three digits would require 1000 in the denominator if the number is between -1 and 1
0.112 = 112/1000 = 56/500 = 28/250 = 14/125