Basic Math Examples

2

$2$ ,

4

$4$ ,

4

$4$ ,

4

$4$ ,

5

$5$ ,

7

$7$ ,

9

$9$

Step 1

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

\frac{2 + 4 + 4 + 4 + 5 + 7 + 9}{7}

$\frac{2 + 4 + 4 + 4 + 5 + 7 + 9}{7}$

Step 2

Simplify the numerator.

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Step 2.1

Add

2

$2$ and

4

$4$ .

\frac{6 + 4 + 4 + 5 + 7 + 9}{7}

$\frac{6 + 4 + 4 + 5 + 7 + 9}{7}$

Step 2.2

Add

6

$6$ and

4

$4$ .

\frac{10 + 4 + 5 + 7 + 9}{7}

$\frac{10 + 4 + 5 + 7 + 9}{7}$

Step 2.3

Add

10

$10$ and

4

$4$ .

\frac{14 + 5 + 7 + 9}{7}

$\frac{14 + 5 + 7 + 9}{7}$

Step 2.4

Add

14

$14$ and

5

$5$ .

\frac{19 + 7 + 9}{7}

$\frac{19 + 7 + 9}{7}$

Step 2.5

Add

19

$19$ and

7

$7$ .

\frac{26 + 9}{7}

$\frac{26 + 9}{7}$

Step 2.6

Add

26

$26$ and

9

$9$ .

\frac{35}{7}

$\frac{35}{7}$

\frac{35}{7}

$\frac{35}{7}$

Step 3

Divide

35

$35$ by

7

$7$ .

5

$5$