Basic Math Examples

$24$ , $17$ , $7$ , $20$ , $28$ , $27$ , $10$ , $21$ , $30$ , $8$ , $30$ , $27$ , $22$ , $27$ , $27$ , $13$ , $27$ , $20$ , $24$ , $17$

Step 1

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

$\frac{24 + 17 + 7 + 20 + 28 + 27 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2

Simplify the numerator.

Tap for more steps...

Step 2.1

Add $24$ and $17$ .

$\frac{41 + 7 + 20 + 28 + 27 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.2

Add $41$ and $7$ .

$\frac{48 + 20 + 28 + 27 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.3

Add $48$ and $20$ .

$\frac{68 + 28 + 27 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.4

Add $68$ and $28$ .

$\frac{96 + 27 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.5

Add $96$ and $27$ .

$\frac{123 + 10 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.6

Add $123$ and $10$ .

$\frac{133 + 21 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.7

Add $133$ and $21$ .

$\frac{154 + 30 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.8

Add $154$ and $30$ .

$\frac{184 + 8 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.9

Add $184$ and $8$ .

$\frac{192 + 30 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.10

Add $192$ and $30$ .

$\frac{222 + 27 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.11

Add $222$ and $27$ .

$\frac{249 + 22 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.12

Add $249$ and $22$ .

$\frac{271 + 27 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.13

Add $271$ and $27$ .

$\frac{298 + 27 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.14

Add $298$ and $27$ .

$\frac{325 + 13 + 27 + 20 + 24 + 17}{20}$

Step 2.15

Add $325$ and $13$ .

$\frac{338 + 27 + 20 + 24 + 17}{20}$

Step 2.16

Add $338$ and $27$ .

$\frac{365 + 20 + 24 + 17}{20}$

Step 2.17

Add $365$ and $20$ .

$\frac{385 + 24 + 17}{20}$

Step 2.18

Add $385$ and $24$ .

$\frac{409 + 17}{20}$

Step 2.19

Add $409$ and $17$ .

$\frac{426}{20}$

Step 3

Cancel the common factor of $426$ and $20$ .

Tap for more steps...

Step 3.1

Factor $2$ out of $426$ .

$\frac{2 (213)}{20}$

Step 3.2

Cancel the common factors.

Tap for more steps...

Step 3.2.1

Factor $2$ out of $20$ .

$\frac{2 \cdot 213}{2 \cdot 10}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 213}{2 \cdot 10}$

Step 3.2.3

Rewrite the expression.

$\frac{213}{10}$

Step 4

Divide.

$21.3$