MP3 Files' Metadata Formatted Output

[Darius1968]

As far as my MP3 collection goes: 
{File.MD.photools.com::IMatch\30800\id3samplerate\0} Hz gets me an output like this: 
48000 Hz

But, how can I format the tag such that I will have an output like:
48 Khz or 44.1 Khz? 

[Mario]

Simple math should do?

{File.MD.photools.com::IMatch\30800\id3samplerate\0|math:div,1000} Khz

[Darius1968]

I used {File.MD.photools.com::IMatch\30800\id3samplerate\0|math:div,1000,1} Khz. 
...Which works perfectly for MP3s with a 44.1 Khz sampling rate.  With MP3s having 48 Khz, however, the XAML output defaults to 48.0 Khz. 
So, how can I further refine the expression to suppress the display of .0, for cases in which the value is just an exact multiple of 1,000? 

[Mario]

You demand one decimal digit by specifying ,1 so you get it.
There is no "one decimal digit except it is 0 or it is rounded to .1" or something.
Use replace to trim the .0 or use two formulas for either case.