If you've ever looked at a tire depth gauge you'll notice that there is only room for the numerators. So its understood that the denominator will be 32. And besides, while smart people know that 4/32 equals 1/8 and so forth, it's something that you have to think about for a split second. It's easier to think in terms of common denominators, even if the fractions aren't reduced.
ya its a dumb question but what is the correct way to use the penny for measuring. to the head , the chin blah blah blah
Nothing like "Old School" sense..... Just like in the Army with the gauges... You had a "GO" side and a "NO Go" side....simplicity is the key.... Let the "experts" debate the details....It either works or it doesn't; It either fits or it won't......
I am so glad i work for a company that cares about tire condition. I never even see tires on trailers that need to be measured here... Also, nobody brought this up, but 1/32" is a lot more precies than 1/16".....if it was labeled as 2/16, it would be legal until its 1/16th under that, you know....
Really want to sound superior? Move to the metric system 3 countries use the dying standard measurement while the rest of the world has advanced. That way we can say 3 mm for steers and 2 mm for the rest