Current Events > Math peeps - What's the best way to convert decimals to odds?

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Comfy_Pillow
09/06/23 9:00:37 PM
#1:


Like to figure out 0.0025 is 1 in 400

But with more difficult decimals that this. Most efficient strat.
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ArkhamOrigins
09/06/23 9:01:44 PM
#2:


I mean, you make that a fraction first, and just reduce as necessary

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Homeless_Waifu
09/06/23 9:01:50 PM
#3:


Calculator

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Naysaspace
09/06/23 9:11:04 PM
#4:


are you talkin about gambling odds vs gambling decimal? Cuz those are a tadd bit different.

anyways there is a foolproof method that even helps convert numbers with infinite decimals. Here we go....

"To express a decimal as a rational, multiply by 1 represented by a fraction, and reduce".

For example:

0.0025 = 0.0025 * 10000/10000 = 25 / 10000 = 5 / 2000 = 1 / 400

To reduce a rational:

Find lowest common multiples, and reconstruct the fraction as a product of these multiples.

25 / 10000 = (5 x 5 x 1) / (5 x 5 x 400) = 1 / 400.
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Serious_Cat
09/06/23 9:12:29 PM
#5:


There isn't a "more difficult" conversion process for any decimal. Divide 1 by the decimal and your odds are one in whatever the result is.

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Naysaspace
09/06/23 9:14:12 PM
#6:


Serious_Cat posted...
There isn't a "more difficult" conversion process for any decimal. Divide 1 by the decimal and your odds are one in whatever the result is.
rational vs irrational
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flussence
09/06/23 9:14:40 PM
#7:


if it ends in 0, 2, 4, 6 or 8 you add 1

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Agonized_rufous
09/06/23 9:15:42 PM
#8:


1/.0025=400

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Serious_Cat
09/06/23 9:17:39 PM
#9:


Naysaspace posted...
rational vs irrational
Doesn't matter. The formula for .3 repeating is still 1/.3 repeating and the result is still 1 in 3.

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