Find the Mean (Arithmetic) 3 1/2

Math
312
Convert 312 to an improper fraction.
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A mixed number is an addition of its whole and fractional parts.
3+12
Add 3 and 12.
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To write 3 as a fraction with a common denominator, multiply by 22.
3⋅22+12
Combine 3 and 22.
3⋅22+12
Combine the numerators over the common denominator.
3⋅2+12
Simplify the numerator.
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Multiply 3 by 2.
6+12
Add 6 and 1.
72
72
72
72
The mean of a set of numbers is the sum divided by the number of terms.
721
Divide 72 by 1.
72
Divide.
3.5
Find the Mean (Arithmetic) 3 1/2

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