Basic Math Examples

21.8

$21.8$ ,

23.4

$23.4$ ,

22.8

$22.8$ ,

27.1

$27.1$ ,

22.5

$22.5$ ,

13.1

$13.1$ ,

11.7

$11.7$ ,

25.6

$25.6$

Step 1

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

\frac{21.8 + 23.4 + 22.8 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}

$\frac{21.8 + 23.4 + 22.8 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}$

Step 2

Simplify the numerator.

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Step 2.1

Add

21.8

$21.8$ and

23.4

$23.4$ .

\frac{45.2 + 22.8 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}

$\frac{45.2 + 22.8 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}$

Step 2.2

Add

45.2

$45.2$ and

22.8

$22.8$ .

\frac{68 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}

$\frac{68 + 27.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}$

Step 2.3

Add

68

$68$ and

27.1

$27.1$ .

\frac{95.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}

$\frac{95.1 + 22.5 + 13.1 + 11.7 + 25.6}{8}$

Step 2.4

Add

95.1

$95.1$ and

22.5

$22.5$ .

\frac{117.6 + 13.1 + 11.7 + 25.6}{8}

$\frac{117.6 + 13.1 + 11.7 + 25.6}{8}$

Step 2.5

Add

117.6

$117.6$ and

13.1

$13.1$ .

\frac{130.7 + 11.7 + 25.6}{8}

$\frac{130.7 + 11.7 + 25.6}{8}$

Step 2.6

Add

130.7

$130.7$ and

11.7

$11.7$ .

\frac{142.4 + 25.6}{8}

$\frac{142.4 + 25.6}{8}$

Step 2.7

Add

$142.4$ and

$25.6$ .

$\frac{168}{8}$

Step 3

Divide

$168$ by

$8$ .

$21$

Step 4

Divide.

$21$