Simple one this (hopefully with a simple solution).
Sass is compiling this....
font-size:(30/13)em;
into this....
font-size: 2.30769 em;
The space before the em makes it invalid and Chrome ignores it.
Any ideas?
(oh and before anybody asks why I'm dividing one number by another, I've simplified a formula to make the question simpler, normally there would be variables in there).