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CAD tip # 7878:

Question CAD
% platform category

How to input a real fraction in AutoCAD?

I am trying to input the offset distance as 17.3 and the drawing is in 1:2 scale, so I entered "17.3/2", but it doesn't work.

On AutoCAD prompts, you can directly input arithmetic expressions with integers (e.g. 17/3), but for operations on real numbers you need to use the embedded CALculator:

Offset distance: 'cal
>>>> Expression: 17.3/2
Continuing the OFFSET command.

Another option is to use the LISP evaluator:

Offset distance: (/ 17.3 2)

And another option is to use the QuickCalc - Ctrl+8.

ACAD

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30.3.2011 8119×

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See also:
Tip 12624:	How to enter dimensions in Revit using other units?
Tip 12002:	Arithmetic expressions with measured distances in AutoCAD.
Tip 11994:	How to scale a 3D model to a given size in Fusion 360?
Tip 11721:	A handy calculator - expression evaluator in 3ds Max.
Tip 11494:	Entering decimal values using fractions in CAD applications.

Selected tip: How to put AutoCAD commandline from cursor back to the command window?

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