Fractional unit to nearest 1/x [Feature Request]

[benriver]

Is your feature request related to a problem? Please describe.
I'm typically marking-up architecture/construction drawings and conventionally use fractional inches.
Usually they are rounded to the nearest 1/4", 1/8" or 1/16" like a tape measure. I thought that by specifying "Maximum fraction denominator" I would get the nearest 1/8" if I entered "8" but I actually got 5ths. Technically this is correct (no arguments there!) and it was the nearest fractional number with a denominator less than or equal to what I asked for....but no one uses 5ths or 7ths in this setting....

Describe the solution you'd like
Could there be an option to "round to the nearest fraction with a denominator <= X"?

Describe anything you've already tried
I can reduce the maximum denominator to force round whole numbers, but then I loose information because it would be rounding aggressively (say dropping from 1/8" to 1/4" precision and I could still get 1/3" increments if that were the closer number) so it's not an ideal solution.

Additional context
Screen shot showing "5.19 in" as "5-1/5 in" which is correct, of course, but unconventional.

Otherwise, thanks for building this!

[benriver]

For completeness, I'd probably say that 5.19" would round to 5-1/4" in this case since that is a smidge closer than 5-1/8. It would lose on "The Price Is Right" show, however.