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Basic Math Examples
what's a fraction less than with a denominator of that's greater than
Step 1
The mean of a set of numbers is the sum divided by the number of terms.
Step 2
Step 2.1
Add and .
Step 2.2
To write as a fraction with a common denominator, multiply by .
Step 2.3
Combine and .
Step 2.4
Combine the numerators over the common denominator.
Step 2.5
Simplify the numerator.
Step 2.5.1
Multiply by .
Step 2.5.2
Add and .
Step 3
Multiply the numerator by the reciprocal of the denominator.
Step 4
Step 4.1
Multiply by .
Step 4.2
Multiply by .
Step 5
Divide.
Step 6
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.