Basic Math Examples

15

$15$ ,

30

$30$ ,

60

$60$

Step 1

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

\frac{15 + 30 + 60}{3}

$\frac{15 + 30 + 60}{3}$

Step 2

Cancel the common factor of

15 + 30 + 60

$15 + 30 + 60$ and

3

$3$ .

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Step 2.1

Factor

3

$3$ out of

15

$15$ .

\frac{3 \cdot 5 + 30 + 60}{3}

$\frac{3 \cdot 5 + 30 + 60}{3}$

Step 2.2

Factor

3

$3$ out of

30

$30$ .

\frac{3 \cdot 5 + 3 \cdot 10 + 60}{3}

$\frac{3 \cdot 5 + 3 \cdot 10 + 60}{3}$

Step 2.3

Factor

3

$3$ out of

3 \cdot 5 + 3 \cdot 10

$3 \cdot 5 + 3 \cdot 10$ .

\frac{3 \cdot (5 + 10) + 60}{3}

$\frac{3 \cdot (5 + 10) + 60}{3}$

Step 2.4

Factor

3

$3$ out of

60

$60$ .

\frac{3 \cdot (5 + 10) + 3 \cdot 20}{3}

$\frac{3 \cdot (5 + 10) + 3 \cdot 20}{3}$

Step 2.5

Factor

3

$3$ out of

3 \cdot (5 + 10) + 3 (20)

$3 \cdot (5 + 10) + 3 (20)$ .

\frac{3 \cdot (5 + 10 + 20)}{3}

$\frac{3 \cdot (5 + 10 + 20)}{3}$

Step 2.6

Cancel the common factors.

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Step 2.6.1

Factor

3

$3$ out of

3

$3$ .

\frac{3 \cdot (5 + 10 + 20)}{3 (1)}

$\frac{3 \cdot (5 + 10 + 20)}{3 (1)}$

Step 2.6.2

Cancel the common factor.

$\frac{3 \cdot (5 + 10 + 20)}{3 \cdot 1}$

Step 2.6.3

Rewrite the expression.

$\frac{5 + 10 + 20}{1}$

Step 2.6.4

Divide

$5 + 10 + 20$ by

$1$ .

$5 + 10 + 20$

$5 + 10 + 20$

$5 + 10 + 20$

Step 3

Simplify by adding numbers.

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Step 3.1

Add

$5$ and

$10$ .

$15 + 20$

Step 3.2

Add

$15$ and

$20$ .

$35$

$35$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$