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I know this is a bit silly, but I need some help with a bit of math. I know that SD will, well, be serious. How do you find the inverse (as in 5 to 1/5) of a decimal number, such as 3.3?


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Ok, thanks. I get it now.


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> *Originally posted by **[dd790](/forums/9/topics/310199?page=1#posts6557448):***
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> It’s ‘maths’ not ‘math’.
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> Just thought that may help
I think the americans call it math but us brits call it maths


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I’ll skip all the technicalities (including jargon) and use concrete exemplification in concordance with basic terminology
Say you have (1/5)
To find the inverse, flip the roles of the denominator and numerator – substitute one for the other: i.e. (5/1 =\> 5)
Now, apply the opposite sign.
For 5, from a positive, you would have a negative. likewise, from a negative, you would apply a positive.
(8/7) would be ( 7/8) etc.
In extension, if you have decimals, multiply the decimal components (i.e. .3) by a factor of 10 to make it whole etc.
That’s all to it


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Depends on the country, dd. Inside the US, it is ‘math’, outside the US, it is maths. American English doesn’t include the ‘s’.
