Basic Math Examples

$3$ , $4$ , $5$ , $6$

Step 1

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

$\frac{3 + 4 + 5 + 6}{4}$

Step 2

Simplify the numerator.

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Step 2.1

Add $3$ and $4$ .

$\frac{7 + 5 + 6}{4}$

Step 2.2

Add $7$ and $5$ .

$\frac{12 + 6}{4}$

Step 2.3

Add $12$ and $6$ .

$\frac{18}{4}$

Step 3

Cancel the common factor of $18$ and $4$ .

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Step 3.1

Factor $2$ out of $18$ .

$\frac{2 (9)}{4}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $2$ out of $4$ .

$\frac{2 \cdot 9}{2 \cdot 2}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 9}{2 \cdot 2}$

Step 3.2.3

Rewrite the expression.

$\frac{9}{2}$

Step 4

Divide.

$4.5$