Basic Math Examples

$\frac{2}{9}$ of

$87.75$

Step 1

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

$\frac{\frac{2}{9} + 87.75}{2}$

Step 2

Simplify the numerator.

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Step 2.1

To write

$87.75$ as a fraction with a common denominator, multiply by

$\frac{9}{9}$ .

$\frac{\frac{2}{9} + 87.75 \cdot \frac{9}{9}}{2}$

Step 2.2

Combine

$87.75$ and

$\frac{9}{9}$ .

$\frac{\frac{2}{9} + \frac{87.75 \cdot 9}{9}}{2}$

Step 2.3

Combine the numerators over the common denominator.

$\frac{\frac{2 + 87.75 \cdot 9}{9}}{2}$

Step 2.4

Rewrite

$\frac{2 + 87.75 \cdot 9}{9}$ in a factored form.

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Step 2.4.1

Multiply

$87.75$ by

$9$ .

$\frac{\frac{2 + 789.75}{9}}{2}$

Step 2.4.2

Add

$2$ and

$789.75$ .

$\frac{\frac{791.75}{9}}{2}$

Step 2.4.3

Divide

$791.75$ by

$9$ .

$\frac{87.97\overline{2}}{2}$

Step 3

Divide

$87.97\overline{2}$ by

$2$ .

$43.986\overline{1}$

Step 4

Divide.

$43.986\overline{1}$

Step 5

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

$44$