Basic Math Examples

$- 16.8$

Step 1

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

$1$ number to the right of the decimal point, place the decimal number over

$10^{1}$

$(10)$ . Next, add the whole number to the left of the decimal.

$- 16 \frac{8}{10}$

Step 2

Reduce the fractional part of the mixed number.

$- 16 \frac{4}{5}$

Step 3

Convert

$16 \frac{4}{5}$ to an improper fraction.

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Step 3.1

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

$- (16 + \frac{4}{5})$

Step 3.2

Add

$16$ and

$\frac{4}{5}$ .

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Step 3.2.1

To write

$16$ as a fraction with a common denominator, multiply by

$\frac{5}{5}$ .

$- (16 \cdot \frac{5}{5} + \frac{4}{5})$

Step 3.2.2

Combine

$16$ and

$\frac{5}{5}$ .

$- (\frac{16 \cdot 5}{5} + \frac{4}{5})$

Step 3.2.3

Combine the numerators over the common denominator.

$- \frac{16 \cdot 5 + 4}{5}$

Step 3.2.4

Simplify the numerator.

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Step 3.2.4.1

Multiply

$16$ by

$5$ .

$- \frac{80 + 4}{5}$

Step 3.2.4.2

Add

$80$ and

$4$ .

$- \frac{84}{5}$