How to write numbers with fractions

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 From:  mickelsen
3089.1 
How do you write numbers with a whole part and fractional part such as two and a half? If I put 2-1/2 then MoI interprets the dash as a minus sign and subtracts the 1/2 from the 2. If I put 2_1/2 I just get an error. There must be a way but I haven't been able to find it. Can someone help?
Thanks,
Mark
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 From:  Frenchy Pilou (PILOU)
3089.2 In reply to 3089.1 
2.5

:)

EDITED: 13 Nov 2009 by PILOU

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 From:  mickelsen
3089.3 In reply to 3089.2 
Thanks, but I want to be able to write the whole with a fraction not a whole with a decimal.
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 From:  Michael Gibson
3089.4 In reply to 3089.1 
Hi Mark, normally those kinds of coordinates are used for feet and inches type units only.

You need to have your unit system set (under Options / General) to something other than "No unit system", and then you can enter in those kinds of coordinates if you include the ' and " marks along with them, like for 8 1/2 feet you enter this:

8 1/2'

Normally when you want that style, you should go to Options / General, and set "Unit system: Feet & Inches".

That will cause the base units to be in feet and all the coordinates and distances will be displayed using that fractional type style, like 8' 2 1/2".


Otherwise if you want to do it for something other than feet or inches that is possible by typing an expression using the + sign, like: 2+1/2 , that will result in 2 + 0.5 = 2.5 units.

Using the + method will work with any unit system and not just for feet and inches.

- Michael
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 From:  Frenchy Pilou (PILOU)
3089.5 In reply to 3089.3 
You type 2/5 and moi convert automatically the result!
Only result is sufficient no? ;)
and 2 +(1/2) will more prudent for complex formula ;)
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 From:  Michael Gibson
3089.6 In reply to 3089.5 
Hi Pilou,

> and 2 +(1/2) will more prudent for complex formula ;)

It's not bad to use ( ) to clarify things especially if you have a longer expression.

But multiplication and division do have higher precedence than addition and subtraction, so for this case you don't need the ( ) and can just write: 2+1/2

That will automatically evaluate as: 2 + (1/2)

- Michael
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 From:  Frenchy Pilou (PILOU)
3089.7 In reply to 3089.6 
Yes but remember precedence is more difficult than write () :)
---
Pilou
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