Basic Math Examples

$770$ $755$ $760$ $770$ $780$

Step 1

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

$\frac{770 + 755 + 760 + 770 + 780}{5}$

Step 2

Cancel the common factor of $770 + 755 + 760 + 770 + 780$ and $5$ .

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Step 2.1

Factor $5$ out of $770$ .

$\frac{5 \cdot 154 + 755 + 760 + 770 + 780}{5}$

Step 2.2

Factor $5$ out of $755$ .

$\frac{5 \cdot 154 + 5 \cdot 151 + 760 + 770 + 780}{5}$

Step 2.3

Factor $5$ out of $5 \cdot 154 + 5 \cdot 151$ .

$\frac{5 \cdot (154 + 151) + 760 + 770 + 780}{5}$

Step 2.4

Factor $5$ out of $760$ .

$\frac{5 \cdot (154 + 151) + 5 \cdot 152 + 770 + 780}{5}$

Step 2.5

Factor $5$ out of $5 \cdot (154 + 151) + 5 (152)$ .

$\frac{5 \cdot (154 + 151 + 152) + 770 + 780}{5}$

Step 2.6

Factor $5$ out of $770$ .

$\frac{5 \cdot (154 + 151 + 152) + 5 \cdot 154 + 780}{5}$

Step 2.7

Factor $5$ out of $5 \cdot (154 + 151 + 152) + 5 (154)$ .

$\frac{5 \cdot (154 + 151 + 152 + 154) + 780}{5}$

Step 2.8

Factor $5$ out of $780$ .

$\frac{5 \cdot (154 + 151 + 152 + 154) + 5 \cdot 156}{5}$

Step 2.9

Factor $5$ out of $5 \cdot (154 + 151 + 152 + 154) + 5 (156)$ .

$\frac{5 \cdot (154 + 151 + 152 + 154 + 156)}{5}$

Step 2.10

Cancel the common factors.

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Step 2.10.1

Factor $5$ out of $5$ .

$\frac{5 \cdot (154 + 151 + 152 + 154 + 156)}{5 (1)}$

Step 2.10.2

Cancel the common factor.

$\frac{5 \cdot (154 + 151 + 152 + 154 + 156)}{5 \cdot 1}$

Step 2.10.3

Rewrite the expression.

$\frac{154 + 151 + 152 + 154 + 156}{1}$

Step 2.10.4

Divide $154 + 151 + 152 + 154 + 156$ by $1$ .

$154 + 151 + 152 + 154 + 156$

Step 3

Simplify by adding numbers.

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Step 3.1

Add $154$ and $151$ .

$305 + 152 + 154 + 156$

Step 3.2

Add $305$ and $152$ .

$457 + 154 + 156$

Step 3.3

Add $457$ and $154$ .

$611 + 156$

Step 3.4

Add $611$ and $156$ .

$767$