Is there a way of combining guessing and limiting?

[Nkburdick]

Great work on the gem, the parsing is excellent!

I'm wondering if I'm just missing it, so please let me know. I'd like to be able to have the number get as close as possible to what the user expects, such as 0.3333 resolving to 1/3, but then to have it also round to the nearest 1/8th or 1/16th if the guesswork didn't pan out. For example:

# Have 0.3333 return 1/3
Fractional.round_to_nearest_fraction(0.333333, "1/8").to_s(mixed_number:true) 
#=> "3/8"    Could this return "1/3"?

# But still have 
Fractional.round_to_nearest_fraction(1100.142857142857143, "1/16").to_s(mixed_number:true)
#=> "1100 1/8"  Which works great