fraction to thousandth a question

[koditten]

Having a but of trouble doing basic math here. Remember doing these conversions in school . IM much dumber now.

5/64 calculated to what when listed as thousandth a of an inch?

A math refresher course would be appreciated as well.

As usual, thanks in advance.

KO

 

[kazlx]

Uh, just divide 5 by 64.

0.078 rounded to thousandths. If you want something easy there are millions of charts online. Usually for drill bits.

 

[galute]

.078

 

[Tronyadorable]

Take this to a print shop, get it on gloss and laminated
I've got them for drills-taps--sheet metal ga. to fractions, metric and thousandths etc.
Google images *** chart. Pick the larger sizes, save to the thumb drive and heat to the print shop.

Bookmark this site too.
It's the homepage on my shop computer
http://www.engineeringtoolbox.com/

 

[wingnut_1]

Kazlx posted a great reply!

edit: so did Trony!

 

[koditten]

Alright! I was doing it right the first time.

A little back ground. This number was given to me in reference to mig welding wire and was told this would work for automotive sheet steel. When I did the math I thought there is no way that large of wire would be used for automotive work.

5/64 is more than 2x the size of my regular .035. In fact I have no idea what that size of wire would be used for.

Thanks for confirmation

KO

 

[kazlx]

IMO, 0.024 is better for auto stuff, esp sheet metal.

 

[koditten]

Without a doubt. Agreed

 

[creativecars]

Math 101

A fraction can always be converted to a decimal by taking the top number (numerator) and dividing by the bottom number (denominator).
IE..
3/8 is 3 divided by 8= .375

To change a decimal to a fraction.
Read .375 as three hundred seventy five thousandths and write it as 375/1000and reduce the fraction to its lowest terms = 3/8

 

[creativecars]

Alright! I was doing it right the first time.

A little back ground. This number was given to me in reference to mig welding wire and was told this would work for automotive sheet steel. When I did the math I thought there is no way that large of wire would be used for automotive work.

5/64 is more than 2x the size of my regular .035. In fact I have no idea what that size of wire would be used for.

Thanks for confirmation

KO

5/64 is big wire... I worked in trailer mfg. where we build 20 to 120+ton trailers, some of the frames were welded with that stuff.

 

[Charles (in GA)]

Fastenal and other suppliers have wall charts they give away.

Charles

 

[Thorold]

This book should always be nearby.

 

[29Sedanman]

If you go to Starretts web site they still offer their classic full size wall chart for free.

 

[gahrajmahal]

Thanks for all the resources folks. I teach blueprint reading and the chart that Tronyadorable is the one I have been searching for. When you have a non-native person who is used to metric, fractions really throw them off. On that chart I show them the relationship that 1 mm = .03937 and 1 in = 25.400, both the conversion factors you use to multiply with. So if you have inch measurement and want to convert it to mm, multiply by 25.4. If you have mm and want to convert to inches multiply by .03937.
I'm gonna have to get me some of those free charts!

 

[rburke65]

Lots of smart, educated people here....thanks for the math refresher.

 

[creativecars]

Thanks for all the recourses folks. I teach blueprint reading and the chart that Tronyadorable is the one I have been searching for. When you have a non-native person who is used to metric, fractions really throw them off. On that chart I show them the relationship that 1 mm = .03937 and 1 in = 25.400, both the conversion factors you use to multiply with. So if you have inch measurement and want to convert it to mm, multiply by 25.4. If you have mm and want to convert to inches multiply by .03937.
I'm gonna have to get me some of those free charts!

When teaching blueprints I understand you must convert exact measurement, but I really hate teaching conversion... I think it is less confusing to teach a system and use one or the other. Then a person can gain usable information.

 

[Professur]

http://www.ebay.com/itm/Depth-Gauge...170?pt=LH_DefaultDomain_0&hash=item234520743a

Every hardware store sells these, and nearly all have the decimal/fraction on the back. I've got about a dozen stuck with tiny speaker magnets all over the house.

 

[creativecars]

http://www.ebay.com/itm/Depth-Gauge...170?pt=LH_DefaultDomain_0&hash=item234520743a

Every hardware store sells these, and nearly all have the decimal/fraction on the back. I've got about a dozen stuck with tiny speaker magnets all over the house.

A great and handy tool.

You are assuming some people can read a ruler...

 

[gahrajmahal]

For a great source for conversions I get all my students the handy dandy Trig book from Carr Lane Manufacturing. It's the best $1.00 you will spend.


http://www.carrlane.com/TrigBook/TrigBookIndex.cfm

 

[joe_padavano]

The computer or phone that you're typing this on has a calculator function built in. That's a LOT faster than surfing to some website to find a pre-printed conversion list. As noted way back at the top of this thread, simply divide the upper number by the lower one.

 

[Punchwood]

1/64" = .016

You can do the rest in your head.

 

[kazlx]

I can look at my chart on the wall faster than I can get my phone out and use it. It's just handy to have in the shop.

 

[abk241]

You can always go to the dollar store and pick up a calculator for a buck.

 

[bob15]

You can always go to the dollar store and pick up a calculator for a buck.

Or use a pencil and a P.A.D.

 

[chruler]

Pfffff! Fraction, schmaction, soon we'll all be using a new standard.