Basic Math Examples

$34.1$ , $33.8$ , $30.5$ , $31.6$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{34.1 + 33.8 + 30.5 + 31.6}{4}$

Step 2

Simplify the numerator.

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Step 2.1

Add $34.1$ and $33.8$ .

$\frac{67.9 + 30.5 + 31.6}{4}$

Step 2.2

Add $67.9$ and $30.5$ .

$\frac{98.4 + 31.6}{4}$

Step 2.3

Add $98.4$ and $31.6$ .

$\frac{130}{4}$

Step 3

Cancel the common factor of $130$ and $4$ .

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Step 3.1

Factor $2$ out of $130$ .

$\frac{2 (65)}{4}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $2$ out of $4$ .

$\frac{2 \cdot 65}{2 \cdot 2}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 65}{2 \cdot 2}$

Step 3.2.3

Rewrite the expression.

$\frac{65}{2}$

Step 4

Divide.

$32.5$