Hi Martin,

re:
> I know it's possible to enter fractions such as 17/64" without having to convert to decimal, but is there
> a formatting rule where I can enter a measurement of something like 4 9/16" directly?

Yes, you need to have a unit system set other than "No unit system", and you need a foot (') or inches(") mark in your input.

Then you can use either a space or a hyphen to separate whole inches from the fractional part, like:

4 9/16"
or
4-9/16"

- Michael