Re: Conversion One Pound and One Shilling = One Guinea.
There's a lot to be said for some of the old systems in day to day life because of the use of fractions and we've kept sexagesimal for angles because of this. But we didn't have common systems throughout. Money had 12d to a shilling and 20 shilling to the pound, weight is a combination of base 16 and base 14 and let's not get started on distance! But in many situations you work with a multiple or a simple fraction of a known amount. You don't have as much of this in metric but calculations are easier because of the consistency.
Biting the hand that feeds IT
