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 9/64ths devided by two equals?

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Cartaphilus

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Age : 63
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PostSubject: 9/64ths devided by two equals?   Sun Aug 23, 2015 12:15 pm

Yes I know this must sound like an idiot asking a math question and for all intended purposes it's an ignorant person asking. Not ever getting anything higher then a "F" in math they just passed me on through grades happily being rid of me. Anyway, back to the question. If half of 3/8" is 3/16" would not half of 9/64" be 9/128". Now, being there's no 128ths on a dang ruler (at least none I have, nor could I see it if there were) how do you measure it. Oh! And lets not reply with decimals cause that's going far over my head and won't do me any good. I reckon your next question for me is, "how in tarnation do you run a lathe and make pipes not knowing decimals and such and the answer is I have a fractional caliper. What I reckon I'm asking is there another fraction used for 9/128" if there is such a thing? scratch


Last edited by Cartaphilus on Sun Aug 23, 2015 12:48 pm; edited 1 time in total
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MisterE
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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 12:25 pm


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AJ

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 12:34 pm

Fraction Calculator Ron according to the calculator on this site your answer would be 9/16. It is very simple to use and may be useful for you in the future. I entered 9/32 divied by 1/2 and the answer was 9/16. Hope this helps. Smile

AJ
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Richard Burley

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 12:43 pm

1/16 would be 1/128 undersize, and 5/64 would be 1/128 oversize. Hope Mr. E's reply above is useful.

But your heading suggests a different question. 9/32 is the same as 18/64. Half that is 9/64.

Question
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 12:55 pm

I haven't a clue what "E"s drill bits have to do with my question and yes, I showed how ignorant I really am by putting 9/32 in the title instead of 9/64. 5)

And the calculator AJ posted is helpful but, I could really use a handheld one not having a PC in my shop.
I wonder. scratch
Your answer made more sense but, the only problem is the answer I'm looking for is most likely in fricken Decimal given your answer. 5)
It's a bitch being dumb.
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:02 pm

ajn27511 wrote:
Fraction Calculator Ron according to the calculator on this site your answer would be 9/16. It is very simple to use and may be useful for you in the future. I entered 9/32 divied by 1/2 and the answer was 9/16. Hope this helps. Smile

AJ

How can half of 9/32 be larger then it's self. There's two 32nds in each 16th .
Something weird about this calculator.
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monbla256

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:06 pm

It's time you got with the metric system Ron. It's SOOOO much easier to use! Measure in mm and it's all a matter of moving a decimal!! You can do just about ALL your pipe work with a small 600 mm rule and a metric/fraction dial mic. It will make things easier !! Twisted Evil Twisted Evil
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:10 pm

monbla256 wrote:
It's time you got with the metric system Ron. It's SOOOO much easier to use! Measure in mm and it's all a matter of moving a decimal!!  You can do just about ALL your pipe work with a small 600 mm rule and a metric/fraction dial mic.  It will make things easier !! Twisted Evil Twisted Evil

I don't know sir, at least fractions I know a little and understand. Anything dealing with a decimal point has always been confusing. Ya just have to understand the way my mind works. If minds are like filing cabinets......I've lost the keys.
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taharris

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:33 pm

Cartaphilus wrote:
ajn27511 wrote:
Fraction Calculator Ron according to the calculator on this site your answer would be 9/16. It is very simple to use and may be useful for you in the future. I entered 9/32 divied by 1/2 and the answer was 9/16. Hope this helps. Smile

AJ

How can half of 9/32 be larger then it's self. There's two 32nds in each 16th .
Something weird about this calculator.

Because he divided by 1/2 instead of dividing by 2.

Half of 9/32 is 9/64, and half of 9/64 is 9/128.

Hope this helps.

Todd
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Ozark Wizard

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:33 pm

I was terrible at fractions in school. At one point, in frustration, I held up my hand, and asked the teacher how this type of mathematics would help me balance my checkbook...........

As it turned out, a good portion of my life was spent building, and using the Olde English Measures, so, it turned out, that knowledge of fractional math DID indeed help balance my checkbooks..........

As far as your query, fractions are simply put, division problems. To simplify your number, divide the bottom number by the top number. That should give you what you're looking for. I tend to round up my numbers. You can always remove more material if need be, but it's tough to add material if you take too much off.....
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taharris

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:37 pm

And 9/128 is 0.0703125

All you need to do is pick up a digital caliper that reads in thousands.

.0703125 is 703.125 thousands on your digital caliper.

Todd
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MisterE
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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:39 pm

9/128=8.4mm. I posted the page to show how that size is represented in practical products. If you divide 9 by 128, which what that fraction represents, you get 0.0703125 inches. That number probably won't help much, unless you're working with a CNC lathe, which I don't believe you are. Maybe think of it as 4.5/64 inches, if thats easier? Anyhow, good luck.

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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:43 pm

taharris wrote:
Cartaphilus wrote:
ajn27511 wrote:
Fraction Calculator Ron according to the calculator on this site your answer would be 9/16. It is very simple to use and may be useful for you in the future. I entered 9/32 divied by 1/2 and the answer was 9/16. Hope this helps. Smile

AJ

How can half of 9/32 be larger then it's self. There's two 32nds in each 16th .
Something weird about this calculator.

Because he divided by 1/2 instead of dividing by 2.

Half of 9/32 is 9/64, and half of 9/64 is 9/128.

Hope this helps.

Todd

Thank you Todd but, I reckon my question is , how does one use a fraction such as this to measure anything with seeing there are no measuring devices that have 128th's on them? Is this why there a decimals?
I see that you answered my question before I was able to reply to your last post. I'll post this anyway, thanks Todd, that's what I thought.....fricken Decimals.


Also, Thank you WO Wink
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:47 pm

MisterE wrote:
9/128=8.4mm. I posted the page to show how that size is represented in practical products. If you divide 9 by 128, which what that fraction represents, you get 0.0703125 inches. That number probably won't help much, unless you're working with a CNC lathe, which I don't believe you are. Maybe think of it as 4.5/64 inches, if thats easier? Anyhow, good luck.

Thank you "E" but, this stuff is all as clear as mud to me. I reckon everything I make will have to be in whole fractions, which is fine with me. I don't need no stinky Decimals.
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allyby

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:52 pm

Todd is spot on Ron, .0070 thou, you need to purchase a Zeus Book and there not expensive and a mine of information.
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:53 pm

taharris wrote:
And 9/128 is 0.0703125

All you need to do is pick up a digital caliper that reads in thousands.

.0703125 is 703.125 thousands on your digital caliper.

Todd

Yeah, I got one of those things Todd..........can't read it, so it's only good to transfer a size of something that I'm copying or the like. Haven't a clue what the numbers mean. 5)
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:55 pm

allyby wrote:
Todd is spot on Ron, .0070 thou, you need to purchase a Zeus Book and there not expensive and a mine of information.

A Hercules book won't do? I have a 1st edition. Wink
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Puff Daddy
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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 1:57 pm

Half of 9/64 is .0703125 . If you wish to stay with the fraction you have to round either up to 5/64 or down to 1/16, or wrap your mind around 4.5/64 Suspect

If you're using this for some sort of tooling purpose, 5/64 gets you roughly 2mm, or vice versa.

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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 2:00 pm

Puff Daddy wrote:
Half of 9/64 is .0703125 . If you wish to stay with the fraction you have to round either up to 5/64 or down to 1/16, or wrap your mind around 4.5/64 Suspect

If you're using this for some sort of tooling purpose, 5/64 gets you roughly 2mm, or vice versa.

I understand PD, I just don't like it. Decimals bite as far as I'm concerned. Wink
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Puff Daddy
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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 2:03 pm

I assumed, since you mentioned a lathe, that you were looking for some sort tool like a drill bit that is half the size of 9/64. The easiest way would be to live with 1/16 or 5/64, a little smaller or a little biger than half of 9/64, or try some metric size bits like 2 mm which may work a bit closer to your desired tolerance.

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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 2:11 pm

Puff Daddy wrote:
I assumed, since you mentioned a lathe, that you were looking for some sort tool like a drill bit that is half the size of 9/64. The easiest way would be to live with 1/16 or 5/64, a little smaller or a little biger than half of 9/64, or try some metric size bits like 2 mm which may work a bit closer to your desired tolerance.

Yes,I was preparing something for the lathe but, it can be adjusted to the nearest workable fraction.
If ya know what I mean. Wink
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AJ

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 3:57 pm

taharris wrote:
Cartaphilus wrote:
ajn27511 wrote:
Fraction Calculator Ron according to the calculator on this site your answer would be 9/16. It is very simple to use and may be useful for you in the future. I entered 9/32 divied by 1/2 and the answer was 9/16. Hope this helps. Smile

AJ

How can half of 9/32 be larger then it's self. There's two 32nds in each 16th .
Something weird about this calculator.

Because he divided by 1/2 instead of dividing by 2.

Half of 9/32 is 9/64, and half of 9/64 is 9/128.

Hope this helps.

Todd

You're right Todd. Smile

AJ
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Ozark Wizard

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 6:01 pm

.0703125 ???

Forgive my pedestrian attitude, but isn't that a tiny bit , um, retentive?

Sorry, but my experience has been that if you can sleep at night, it's more than likely close enough for who it for.

I could be wrong..........

I am often wrong..................
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Cartaphilus

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 6:08 pm

Ozark Wizard wrote:
.0703125 ???

Forgive my pedestrian attitude, but isn't that a tiny bit , um, retentive?

Sorry, but my experience has been that if you can sleep at night, it's more than likely close enough for who it for.

I could be wrong..........

I am often wrong..................

Anal retentive? Yep! that's me. Wink
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George Kaplan

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PostSubject: Re: 9/64ths devided by two equals?   Sun Aug 23, 2015 6:11 pm

At your age, Cart, you should be lucky to have some retention on that area.
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