Basic Math Examples

40 \div 2009 \div 1

$40 \div 2009 \div 1$ ,

528

$528$ ,

480

$480$

Step 1

Rewrite the division as a fraction.

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

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

Step 2

Divide

40 \div 2009

$40 \div 2009$ by

1

$1$ .

40 \div 2009, 528, 480

$40 \div 2009, 528, 480$

Step 3

Rewrite the division as a fraction.

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

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

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}

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

Step 5

Simplify the numerator.

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Step 5.1

To write

528

$528$ as a fraction with a common denominator, multiply by

\frac{2009}{2009}

$\frac{2009}{2009}$ .

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

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

Step 5.2

Combine

528

$528$ and

\frac{2009}{2009}

$\frac{2009}{2009}$ .

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

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

Step 5.3

Combine the numerators over the common denominator.

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

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

Step 5.4

Simplify the numerator.

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Step 5.4.1

Multiply

528

$528$ by

2009

$2009$ .

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

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

Step 5.4.2

Add

40

$40$ and

1060752

$1060752$ .

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

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

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

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

Step 5.5

To write

480

$480$ as a fraction with a common denominator, multiply by

\frac{2009}{2009}

$\frac{2009}{2009}$ .

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

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

Step 5.6

Combine

480

$480$ and

\frac{2009}{2009}

$\frac{2009}{2009}$ .

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

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

Step 5.7

Combine the numerators over the common denominator.

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

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

Step 5.8

Simplify the numerator.

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Step 5.8.1

Multiply

480

$480$ by

2009

$2009$ .

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

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

Step 5.8.2

Add

1060792

$1060792$ and

964320

$964320$ .

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

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

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

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

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

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

Step 6

Multiply the numerator by the reciprocal of the denominator.

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

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

Step 7

Multiply

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

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

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Step 7.1

Multiply

\frac{2025112}{2009}

$\frac{2025112}{2009}$ by

\frac{1}{3}

$\frac{1}{3}$ .

\frac{2025112}{2009 \cdot 3}

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

Step 7.2

Multiply

2009

$2009$ by

3

$3$ .

\frac{2025112}{6027}

$\frac{2025112}{6027}$

\frac{2025112}{6027}

$\frac{2025112}{6027}$

Step 8

Divide.

336.0066368

$336.0066368$

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

$336$