How can "12 of 40" be written as a simplified ratio?

➷ 12 : 40

==> 3 : 10

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3/10

Step-by-step explanation:

Ok, so you have 12/40. You're trying to simplify it, so you can divide it by 2 because the numerator and the denominator are even. Then you get 6/20. You can divide it by 2 again. You get 3/10. Since that can't be simplified unless you divide and want a decimal, thats the answer in simplest form.