# Find the Mean (Arithmetic) 9 5/8+2 5/8 958+258
Convert 958 to an improper fraction.
A mixed number is an addition of its whole and fractional parts.
9+58+258
Add 9 and 58.
To write 9 as a fraction with a common denominator, multiply by 88.
9⋅88+58+258
Combine 9 and 88.
9⋅88+58+258
Combine the numerators over the common denominator.
9⋅8+58+258
Simplify the numerator.
Multiply 9 by 8.
72+58+258
Add 72 and 5.
778+258
778+258
778+258
778+258
Convert 258 to an improper fraction.
A mixed number is an addition of its whole and fractional parts.
778+2+58
Add 2 and 58.
To write 2 as a fraction with a common denominator, multiply by 88.
778+2⋅88+58
Combine 2 and 88.
778+2⋅88+58
Combine the numerators over the common denominator.
778+2⋅8+58
Simplify the numerator.
Multiply 2 by 8.
778+16+58
Add 16 and 5.
778+218
778+218
778+218
778+218
Combine the numerators over the common denominator.
77+218
Add 77 and 21.
988
Cancel the common factor of 98 and 8.
Factor 2 out of 98.
2(49)8
Cancel the common factors.
Factor 2 out of 8.
2⋅492⋅4
Cancel the common factor.
2⋅492⋅4
Rewrite the expression.
494
494
494
The mean of a set of numbers is the sum divided by the number of terms.
4941
Divide 494 by 1.
494
Divide.
12.25
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.
12.3
Find the Mean (Arithmetic) 9 5/8+2 5/8

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