Basic Math Examples

$40 \div 2009 \div 1$ , $528$ , $480$

Step 1

Rewrite the division as a fraction.

$\frac{40 \div 2009}{1}, 528, 480$

Step 2

Divide $40 \div 2009$ by $1$ .

$40 \div 2009, 528, 480$

Step 3

Rewrite the division as a fraction.

$\frac{40}{2009}, 528, 480$

Step 4

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

$\frac{\frac{40}{2009} + 528 + 480}{3}$

Step 5

Simplify the numerator.

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Step 5.1

To write $528$ as a fraction with a common denominator, multiply by $\frac{2009}{2009}$ .

$\frac{\frac{40}{2009} + 528 \cdot \frac{2009}{2009} + 480}{3}$

Step 5.2

Combine $528$ and $\frac{2009}{2009}$ .

$\frac{\frac{40}{2009} + \frac{528 \cdot 2009}{2009} + 480}{3}$

Step 5.3

Combine the numerators over the common denominator.

$\frac{\frac{40 + 528 \cdot 2009}{2009} + 480}{3}$

Step 5.4

Simplify the numerator.

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Step 5.4.1

Multiply $528$ by $2009$ .

$\frac{\frac{40 + 1060752}{2009} + 480}{3}$

Step 5.4.2

Add $40$ and $1060752$ .

$\frac{\frac{1060792}{2009} + 480}{3}$

Step 5.5

To write $480$ as a fraction with a common denominator, multiply by $\frac{2009}{2009}$ .

$\frac{\frac{1060792}{2009} + 480 \cdot \frac{2009}{2009}}{3}$

Step 5.6

Combine $480$ and $\frac{2009}{2009}$ .

$\frac{\frac{1060792}{2009} + \frac{480 \cdot 2009}{2009}}{3}$

Step 5.7

Combine the numerators over the common denominator.

$\frac{\frac{1060792 + 480 \cdot 2009}{2009}}{3}$

Step 5.8

Simplify the numerator.

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Step 5.8.1

Multiply $480$ by $2009$ .

$\frac{\frac{1060792 + 964320}{2009}}{3}$

Step 5.8.2

Add $1060792$ and $964320$ .

$\frac{\frac{2025112}{2009}}{3}$

Step 6

Multiply the numerator by the reciprocal of the denominator.

$\frac{2025112}{2009} \cdot \frac{1}{3}$

Step 7

Multiply $\frac{2025112}{2009} \cdot \frac{1}{3}$ .

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Step 7.1

Multiply $\frac{2025112}{2009}$ by $\frac{1}{3}$ .

$\frac{2025112}{2009 \cdot 3}$

Step 7.2

Multiply $2009$ by $3$ .

$\frac{2025112}{6027}$

Step 8

Divide.

$336.0066368$

Step 9

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.

$336$