stone to kilogramm

stone to kilogramm   (12/13/2008, 1:39 AM)

hello,

I'm searching for some help, because my bathroom scales confuses me a little bit.

To my problem, the scales displays

11:12 2/4

and i have really no idea, how to convert this into kg, I know that one stone is about 6.35...but I don't understand this ":"

You would be a large help for me, if you can explain me the conversion.

Bye bye
Lisa