A mixed number is an addition of its whole and fractional parts.
Add and .
To write as a fraction with a common denominator, multiply by .
Combine and .
Combine the numerators over the common denominator.
Simplify the numerator.
Multiply by .
Add and .
Step 2
To write as a fraction with a common denominator, multiply by .
Step 3
To write as a fraction with a common denominator, multiply by .
Step 4
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Multiply by .
Multiply by .
Multiply by .
Multiply by .
Step 5
Combine the numerators over the common denominator.
Step 6
Simplify the numerator.
Multiply by .
Multiply by .
Add and .
Step 7
The mean of a set of numbers is the sum divided by the number of terms.
Step 8
Cancel the common factor of and .
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 .
Step 9
To write as a fraction with a common denominator, multiply by .
Step 10
Combine and .
Step 11
Combine the numerators over the common denominator.
Step 12
Simplify the numerator.
Multiply by .
Add and .
Step 13
Divide.
Step 14
The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.