Need Numbers to Concatenate to Number Format, Not Text Format

Hi all,

I'm trying to convert some data from MLS to make it easier to work with statistically. The raw data regarding Bath count downloads from MLS in 2 columns; 1 column for Full Baths & 1 column for Half Baths (see Raw Data.jpg). I want to concatenate the baths to one column and, if there is a 1/2 bath, tack ".5" to the end of the full bath count.

The problem with my formula is that if it concatenates the ".5" to the full bath count number, it converts the format to text (see Current Formula.jpg). I know I can go through later and convert it back to number format but is there a formula I could use that would keep it in number format?

Thanks for any help!