Basic Math Examples

- \frac{1}{8} - \frac{1}{4}

$- \frac{1}{8} - \frac{1}{4}$

Step 1

To write

- \frac{1}{4}

$- \frac{1}{4}$ as a fraction with a common denominator, multiply by

\frac{2}{2}

$\frac{2}{2}$ .

- \frac{1}{8} - \frac{1}{4} \cdot \frac{2}{2}

$- \frac{1}{8} - \frac{1}{4} \cdot \frac{2}{2}$

Step 2

Write each expression with a common denominator of

8

$8$ , by multiplying each by an appropriate factor of

1

$1$ .

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Step 2.1

Multiply

\frac{1}{4}

$\frac{1}{4}$ by

\frac{2}{2}

$\frac{2}{2}$ .

- \frac{1}{8} - \frac{2}{4 \cdot 2}

$- \frac{1}{8} - \frac{2}{4 \cdot 2}$

Step 2.2

Multiply

4

$4$ by

2

$2$ .

- \frac{1}{8} - \frac{2}{8}

$- \frac{1}{8} - \frac{2}{8}$

- \frac{1}{8} - \frac{2}{8}

$- \frac{1}{8} - \frac{2}{8}$

Step 3

Combine the numerators over the common denominator.

\frac{- 1 - 2}{8}

$\frac{- 1 - 2}{8}$

Step 4

Subtract

2

$2$ from

- 1

$- 1$ .

\frac{- 3}{8}

$\frac{- 3}{8}$

Step 5

Move the negative in front of the fraction.

- \frac{3}{8}

$- \frac{3}{8}$

Step 6

The result can be shown in multiple forms.

Exact Form:

- \frac{3}{8}

$- \frac{3}{8}$

Decimal Form:

- 0.375

$- 0.375$