,
Rewrite the division as a fraction.
The mean of a set of numbers is the sum divided by the number of terms.
Factor out of .
Factor out of .
Factor out of .
Cancel the common factors.
Factor out of .
Cancel the common factor.
Rewrite the expression.
Divide by .
To write as a fraction with a common denominator, multiply by .
Combine and .
Combine the numerators over the common denominator.
Multiply by .
Add and .
Divide.
Find the Mean (Arithmetic) 74÷5 , 836