Configuring Maxima output as an improper fraction?

Richard Fateman wrote:
> Why not multiply your result by 1.0, and use decimal.  It seems to me 
> that you probably don't want improper fractions that are smaller than 
> 1/16 or 1/32.  You can buy a ruler that has a decimal to fraction 
> table engraved on the back.

I thought about that, and about making a lookup table for the 
decimals->fraction conversions that I haven't memorized yet, and using a 
conventional calculator -- but I couldn't find my calculator, and I was 
stubborn, and it was late, and it was a good opportunity to learn a new 
application.  Plus, the reason I wanted to use a symbolic math system 
was because I wanted my calculations to match my application, not the 
other way around.  :-)

I guess I just have an engineer's attitude toward math involving Real 
numbers -- no matter how much guff my girlfriend (who is pursuing a PHD 
in a sciency field) gives me for it... :-)

-Luke