I've seen this in action in some US Youtube channels. To me it feels like those videos of people who lost their arms and learned to play the drums with their f

I've seen this in action in some US Youtube channels. To me it feels like those videos of people who lost their arms and learned to play the drums with their feet. Impressive, but also born out of limitations. > tradespeople who use metric 2.625 / 2 = Divide each digit by 2 = 1 . 3 1 (2.5) = 1.3125 Most of the time it isn't needed because there isn't a lot of those fractions going around to begin with. The problem isn't the units, themselves (inches, etc). It's that their relation isn't 10.