Paul P
SilkTone
Where did the idea came from that you can't use fraction representation in the metric system?
But why would you ? What point is there to imagine 1/3 of 100mm ?
Yards, feet and inches with their fractions are chunks with certain properies that can be useful in one's work. Metric only supports relations based on 10. It's very easy to divide a measurement by 10 in the metric system, much easier than imperial, but only for 10 and it's multiples. Imperial has built in 2,3,4,6,8,12,16,32,...
There is probably a reason why the imperial system came about in the form it did. It was useful for people without calculators.
Your point is only valid if you always start out with lengths that are exact multiples of inches or feet. In reality most measurements aren't, so your 2,3,4,6,8,12,16,32 argument doesn't hold up. As I mentioned previously, how do you divide 7 5/8" into 2, 3, 4, 6, 8, 12, 16, 32?
Also, you are only talking about just two units here, feet and inch. You haven't addressed conversions between other units like yards, miles, nautical miles, chains, fathoms, cables, links, rods, furloughs, leagues, points, picas, acres, sections, survey townships, short tons, long tons, knots, teaspoons, tablespoons, dessertspoons, minims, fluid drams, shots, gills, cups, pints, quarts, gallons, pecks, bushels, fluid ounces, fluid scruples, fluid drachms, troy ounces, troy pounds, grains, pounds, pennyweights, stones, hundredweights, horsepower, slugs, rack units, barrels and hogsheads.
In the metric system,
all of those different units are reduced to simply meter, kilogram, watt, liter.