Combine the numerators over the common denominator.
5⋅57+5⋅57+5⋅57+46-4⋅5757
Step 3
Simplify each term.
Multiply5 by 57.
285+5⋅57+5⋅57+46-4⋅5757
Multiply5 by 57.
285+285+5⋅57+46-4⋅5757
Multiply5 by 57.
285+285+285+46-4⋅5757
Multiply-4 by 57.
285+285+285+46-22857
285+285+285+46-22857
Step 4
Simplify by adding and subtracting.
Add 285 and 285.
570+285+46-22857
Add 570 and 285.
855+46-22857
Add 855 and 46.
901-22857
Subtract 228 from 901.
67357
67357
Step 5
The mean of a set of numbers is the sum divided by the number of terms.
673571
Step 6
Divide67357 by 1.
67357
Step 7
Divide.
11.80701754
Step 8
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.