> Interesting tool, I find myself struggling about unexpected fractions 
> too often :) Do you think might be interesting for Trunk?

I think so, now I don't know if it should be called #/// (obviously I 
got used to that).

I have it implemented in Collection, Float, Number and Point.

> And by the way, is [a / b asFloat] preferable to [a asFloat / b] or [(a 
> / b) asFloat]?
(a / b) asFloat is definitely not good, because you get the Fraction 
there...

Stef