Find the Mean (Arithmetic) 3 , 12 , 21

Math
, ,
The mean of a set of numbers is the sum divided by the number of terms.
Cancel the common factor of and .
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Factor out of .
Factor out of .
Factor out of .
Factor out of .
Factor out of .
Cancel the common factors.
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Factor out of .
Cancel the common factor.
Rewrite the expression.
Divide by .
Simplify by adding numbers.
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Add and .
Add and .
Find the Mean (Arithmetic) 3 , 12 , 21

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