Basic Math Examples

Find the Mean 23÷22 , 890
,
Step 1
Rewrite the division as a fraction.
Step 2
The mean of a set of numbers is the sum divided by the number of terms.
Step 3
Simplify the numerator.
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Step 3.1
To write as a fraction with a common denominator, multiply by .
Step 3.2
Combine and .
Step 3.3
Combine the numerators over the common denominator.
Step 3.4
Simplify the numerator.
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Step 3.4.1
Multiply by .
Step 3.4.2
Add and .
Step 4
Multiply the numerator by the reciprocal of the denominator.
Step 5
Multiply .
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Step 5.1
Multiply by .
Step 5.2
Multiply by .
Step 6
Divide.
Step 7
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.