Basic Math Examples

$15$ , $17$ , $15$ , $14$ , $8$ , $21$ , $10$ , $5$ , $19$ , $20$ , $10$ , $5$ , $17$ , $12$ , $10$ , $10$

Step 1

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

$\frac{15 + 17 + 15 + 14 + 8 + 21 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2

Simplify the numerator.

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Step 2.1

Add $15$ and $17$ .

$\frac{32 + 15 + 14 + 8 + 21 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.2

Add $32$ and $15$ .

$\frac{47 + 14 + 8 + 21 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.3

Add $47$ and $14$ .

$\frac{61 + 8 + 21 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.4

Add $61$ and $8$ .

$\frac{69 + 21 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.5

Add $69$ and $21$ .

$\frac{90 + 10 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.6

Add $90$ and $10$ .

$\frac{100 + 5 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.7

Add $100$ and $5$ .

$\frac{105 + 19 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.8

Add $105$ and $19$ .

$\frac{124 + 20 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.9

Add $124$ and $20$ .

$\frac{144 + 10 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.10

Add $144$ and $10$ .

$\frac{154 + 5 + 17 + 12 + 10 + 10}{16}$

Step 2.11

Add $154$ and $5$ .

$\frac{159 + 17 + 12 + 10 + 10}{16}$

Step 2.12

Add $159$ and $17$ .

$\frac{176 + 12 + 10 + 10}{16}$

Step 2.13

Add $176$ and $12$ .

$\frac{188 + 10 + 10}{16}$

Step 2.14

Add $188$ and $10$ .

$\frac{198 + 10}{16}$

Step 2.15

Add $198$ and $10$ .

$\frac{208}{16}$

Step 3

Divide $208$ by $16$ .

$13$