[OP]
Contributor
I have a Construction Master Pro by Calculated Industries. I tried and tried to divide 27 5/8" by 5 and kept coming up with 5 1/2". I then tried 27" divided by 5 and came up with 5 3/8". Why is this seemingly good calculator giving me these wrong answers? Can you recommend a good calculator that will do inch calculations, accurate to the 32ths.
My Fast Cap 'Converter Pro' (about $15 IIRC) says 27-5/8" divided by 5 is 5-33/64". 1/64" is the finest increment. I assume you're looking for imperial measurements. Unfortunately, it appears that they no longer make it(???).
Last edited by glenn bradley; 11-11-2014 at 6:50 PM.
"A hen is only an egg's way of making another egg".
– Samuel Butler
Contributor
How about an iPhone app? Fraction Plus available in the iTunes store.
Fractions plus comes up with 5 21/40.
If you convert 27 5/8 to eights it is 221/8 divided by 5 = 5.525 or 5 21/40.
Last edited by George Bokros; 11-11-2014 at 6:48 PM.
George
Making sawdust regularly, occasionally a project is completed.
Member
The default fractional setting for that calculator is 1/16. Unless you have changed it to 1/32 or 1/64 you are getting the correct answer, that is, 0.525 rounded to the nearest 1/16 is 1/2. See page 27 of the manual.
Beranek's Law:
It has been remarked that if one selects his own components, builds his own enclosure, and is convinced he has made a wise choice of design, then his own loudspeaker sounds better to him than does anyone else's loudspeaker. In this case, the frequency response of the loudspeaker seems to play only a minor part in forming a person's opinion.
L.L. Beranek, Acoustics (McGraw-Hill, New York, 1954), p.208.
Member
... and the answer in either case was off by less than 1/32"!Originally Posted by David L Morse
[OP]
Contributor
David, thanks so much. Found it on pg. 35 of my pocket manual. I was ready to buy another calculator, but now I feel I can keep this one. I have it set to 1/32. Now I can round up or down and not have to cross my eyes to see it. Thanks again! I new someone here would know.
Member
I have the Construction Master Pro app on my phone and have it set to 1/64" and when I do the math on the 27 5/8" it comes out to 5 17/32".
I will say I love the Construction Master Pro, it sure make life easier when working with fractions.
Moderator
Time to go all decimal and not these silly 1/16, 1/32, 1/64 divisions. I guess it keeps my brain going.
Anyone have a decimal tape measure?
Contributor
Wow, what a great argument for going metric. I'm about halfway there, but still have too many tools that come in weird sizes like those 12.7 mm mortising chisels and 6.35 mm drills. My error rate has gone way down since converting most of my drawings and measurements to metric/decimal. Of course converting completely might be a good excuse for some new tools...
Contributor
I have.. at least 6......Anyone have a decimal tape measure?
Member
Yes.... It's a METRIC tape- you know, millimeters, centimeters, meters, and all the rest... It makes the arithmetic so very easy...
Moderator
Whoa!! I said DECIMAL...not METRIC!
inch-decimal.jpg
Member
That's decimal inch. What about decimal foot?
Tape1.jpg
Beranek's Law:
It has been remarked that if one selects his own components, builds his own enclosure, and is convinced he has made a wise choice of design, then his own loudspeaker sounds better to him than does anyone else's loudspeaker. In this case, the frequency response of the loudspeaker seems to play only a minor part in forming a person's opinion.
L.L. Beranek, Acoustics (McGraw-Hill, New York, 1954), p.208.
[OP]
Contributor
Wish I went metric way back when they were talking about us going metric. Really would have been great for us all. I'm trying, but it's this senior brain of mine...I know...excuses, excuses...
Member
http://www.kahntools.com/8-200mm-yan...ividers-1.html
No math, no numbers, just perfect results every time.
Paul
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