JDNSW, it's completely acceptable to remove common factors on both sides of the division equation. For example, with my around-town gas usage approximating 25l/100km, I tend to simplify that to 1l/4km.

I could, of course, express this as 4km/l and mean the same thing, and then I COULD go through the exercise of converting to MPG to tell me that it's really bad fuel economy...

__________________
Steve

1992 Defender
REMLR No. 215