Basic Math Examples

34.1

$34.1$ ,

33.8

$33.8$ ,

30.5

$30.5$ ,

31.6

$31.6$

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}

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

Step 2

Simplify the numerator.

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Step 2.1

Add

34.1

$34.1$ and

33.8

$33.8$ .

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

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

Step 2.2

Add

67.9

$67.9$ and

30.5

$30.5$ .

\frac{98.4 + 31.6}{4}

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

Step 2.3

Add

98.4

$98.4$ and

31.6

$31.6$ .

\frac{130}{4}

$\frac{130}{4}$

\frac{130}{4}

$\frac{130}{4}$

Step 3

Cancel the common factor of

130

$130$ and

4

$4$ .

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Step 3.1

Factor

2

$2$ out of

130

$130$ .

\frac{2 (65)}{4}

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

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor

2

$2$ out of

4

$4$ .

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

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

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.

$32.5$