> Dividing 1 foot by 4 is much easier than dividing 30cm. That's of course very subjective. One has to remember that 1 foot is 12 inches, where in metrics one

> Dividing 1 foot by 4 is much easier than dividing 30cm. That's of course very subjective. One has to remember that 1 foot is 12 inches, where in metrics one only remember once all prefixes and applies them to all units uniformly.