Re: Converting decimal number to carpenter's fractions
- Posted by useless_ May 11, 2012
- 2698 views
Did I do this right? The rounded decimal figure appears to be as accurate as the most accurate fraction. Also, I dare say it is much easier to use. My metric/inch tape measure is marked in 16ths of an inch. Simple rounding of the metric reading appears to be more accurate by 1/32", right?
As always, accuracy and precision don't mean much out of context. If the accuracy is good enough for your purpose, then it's good enough. For stuff like this, my ability to cut / position things is a lot less precise than 1/32". If you're calculating something in a financial context, people may get upset about a penny here or there.
Matt
Sometimes it matters. I just had some holes drilled, i spec'd 0.234 but was accepting 6mm (0.236). What i got was 0.232, and stuff simply didn't fit such a small hole. Just the same, i need to remove 0.001 from all around the hole perimeter, and 0.002 will be excessive, and the hole must remain round, so care is required, and proper measuring.
useless
