Basic Math Examples

7.812

$7.812$

Step 1

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are

3

$3$ numbers to the right of the decimal point, place the decimal number over

10^{3}

$10^{3}$

(1000)

$(1000)$ . Next, add the whole number to the left of the decimal.

7 \frac{812}{1000}

$7 \frac{812}{1000}$

Step 2

Reduce the fractional part of the mixed number.

7 \frac{203}{250}

$7 \frac{203}{250}$

Step 3

Convert

7 \frac{203}{250}

$7 \frac{203}{250}$ to an improper fraction.

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Step 3.1

A mixed number is an addition of its whole and fractional parts.

7 + \frac{203}{250}

$7 + \frac{203}{250}$

Step 3.2

Add

7

$7$ and

\frac{203}{250}

$\frac{203}{250}$ .

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Step 3.2.1

To write

7

$7$ as a fraction with a common denominator, multiply by

\frac{250}{250}

$\frac{250}{250}$ .

7 \cdot \frac{250}{250} + \frac{203}{250}

$7 \cdot \frac{250}{250} + \frac{203}{250}$

Step 3.2.2

Combine

7

$7$ and

\frac{250}{250}

$\frac{250}{250}$ .

\frac{7 \cdot 250}{250} + \frac{203}{250}

$\frac{7 \cdot 250}{250} + \frac{203}{250}$

Step 3.2.3

Combine the numerators over the common denominator.

\frac{7 \cdot 250 + 203}{250}

$\frac{7 \cdot 250 + 203}{250}$

Step 3.2.4

Simplify the numerator.

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Step 3.2.4.1

Multiply

7

$7$ by

250

$250$ .

\frac{1750 + 203}{250}

$\frac{1750 + 203}{250}$

Step 3.2.4.2

Add

1750

$1750$ and

203

$203$ .

\frac{1953}{250}

$\frac{1953}{250}$

\frac{1953}{250}

$\frac{1953}{250}$

\frac{1953}{250}

$\frac{1953}{250}$

\frac{1953}{250}

$\frac{1953}{250}$