Question has been answered once before. Can’t find the answer. The question is. I would like to type in for a length of 7 3/16 inches. How do I write that measurement in the box?
Assuming, of course, that you’re in inches mode, typing “7+3/16” should get you what you want.
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The whole discussion:
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With the release of LightBurn version 0.8.07, Oz shared the following in a blog post from 2018:
Equations:
This one is a pet project of mine: LightBurn’s X & Y position, width, height, scale, and interval entry boxes now support expressions and units. What does this mean for you?
If you type 1/2in, and you’re in mm mode, it’ll turn into 12.7. If you’re in inch mode and type 1/2in, it’ll become 0.5. You can use ft, cm, in, or mm, along with normal math symbols and parenthesis (*/-+). You can combine them, so entering (1/2in + 3mm) * 2.5 + 1ft is valid. You can type 1/300in in the interval box to have it convert “300 lines per inch” into an interval for you. This should make working in mixed units easier.
Over the next release or two I’ll be replacing other number boxes with the new equation entry box, but it’ll take a bit of time.
Many of the remaining entry boxes have been updated to leverage the Equations edit format. 
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thanks ever so much
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