Yet another "Mathf.PerlinNoise() returning the same value" problem

The solution that I see on these answers all the time is that you need to use fractions instead integers, but it seems not to help in my case.

With this code

 float noiseResolution = 100f;
 for (int i = 0; i < range1; i++) {
     for (int j = 0; j < range2; j++) {
         n = Mathf.PerlinNoise (
                 (float)i / range1 / noiseResolution,
                 (float)J / range2 / noiseResolution
         )
     }
 }

arguments are clearly fractions, and yet the result is somewhat the same. What I'm doing wrong?