Basic Math Examples

45

$45$ ,

45

$45$ ,

90

$90$

Step 1

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

\frac{45 + 45 + 90}{3}

$\frac{45 + 45 + 90}{3}$

Step 2

Cancel the common factor of

45 + 45 + 90

$45 + 45 + 90$ and

3

$3$ .

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Step 2.1

Factor

3

$3$ out of

45

$45$ .

\frac{3 \cdot 15 + 45 + 90}{3}

$\frac{3 \cdot 15 + 45 + 90}{3}$

Step 2.2

Factor

3

$3$ out of

45

$45$ .

\frac{3 \cdot 15 + 3 \cdot 15 + 90}{3}

$\frac{3 \cdot 15 + 3 \cdot 15 + 90}{3}$

Step 2.3

Factor

3

$3$ out of

3 \cdot 15 + 3 \cdot 15

$3 \cdot 15 + 3 \cdot 15$ .

\frac{3 \cdot (15 + 15) + 90}{3}

$\frac{3 \cdot (15 + 15) + 90}{3}$

Step 2.4

Factor

3

$3$ out of

90

$90$ .

\frac{3 \cdot (15 + 15) + 3 \cdot 30}{3}

$\frac{3 \cdot (15 + 15) + 3 \cdot 30}{3}$

Step 2.5

Factor

3

$3$ out of

3 \cdot (15 + 15) + 3 (30)

$3 \cdot (15 + 15) + 3 (30)$ .

\frac{3 \cdot (15 + 15 + 30)}{3}

$\frac{3 \cdot (15 + 15 + 30)}{3}$

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 (15 + 15 + 30)}{3 (1)}

$\frac{3 \cdot (15 + 15 + 30)}{3 (1)}$

Step 2.6.2

Cancel the common factor.

$\frac{3 \cdot (15 + 15 + 30)}{3 \cdot 1}$

Step 2.6.3

Rewrite the expression.

$\frac{15 + 15 + 30}{1}$

Step 2.6.4

Divide

$15 + 15 + 30$ by

$1$ .

$15 + 15 + 30$

$15 + 15 + 30$

$15 + 15 + 30$

Step 3

Simplify by adding numbers.

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Step 3.1

Add

$15$ and

$15$ .

$30 + 30$

Step 3.2

Add

$30$ and

$30$ .

$60$

$60$

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