Basic Math Examples

$28.5$

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.

$28 \frac{5}{10}$

Step 2

Reduce the fractional part of the mixed number.

$28 \frac{1}{2}$

Step 3

Convert

$28 \frac{1}{2}$ to an improper fraction.

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Step 3.1

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

$28 + \frac{1}{2}$

Step 3.2

Add

$28$ and

$\frac{1}{2}$ .

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Step 3.2.1

To write

$28$ as a fraction with a common denominator, multiply by

$\frac{2}{2}$ .

$28 \cdot \frac{2}{2} + \frac{1}{2}$

Step 3.2.2

Combine

$28$ and

$\frac{2}{2}$ .

$\frac{28 \cdot 2}{2} + \frac{1}{2}$

Step 3.2.3

Combine the numerators over the common denominator.

$\frac{28 \cdot 2 + 1}{2}$

Step 3.2.4

Simplify the numerator.

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Step 3.2.4.1

Multiply

$28$ by

$2$ .

$\frac{56 + 1}{2}$

Step 3.2.4.2

Add

$56$ and

$1$ .

$\frac{57}{2}$