Basic Math Examples

\frac{7}{8} - \frac{1}{2}

$\frac{7}{8} - \frac{1}{2}$

Step 1

To write

- \frac{1}{2}

$- \frac{1}{2}$ as a fraction with a common denominator, multiply by

\frac{4}{4}

$\frac{4}{4}$ .

\frac{7}{8} - \frac{1}{2} \cdot \frac{4}{4}

$\frac{7}{8} - \frac{1}{2} \cdot \frac{4}{4}$

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}{2}

$\frac{1}{2}$ by

\frac{4}{4}

$\frac{4}{4}$ .

\frac{7}{8} - \frac{4}{2 \cdot 4}

$\frac{7}{8} - \frac{4}{2 \cdot 4}$

Step 2.2

Multiply

2

$2$ by

4

$4$ .

\frac{7}{8} - \frac{4}{8}

$\frac{7}{8} - \frac{4}{8}$

\frac{7}{8} - \frac{4}{8}

$\frac{7}{8} - \frac{4}{8}$

Step 3

Combine the numerators over the common denominator.

\frac{7 - 4}{8}

$\frac{7 - 4}{8}$

Step 4

Subtract

4

$4$ from

7

$7$ .

\frac{3}{8}

$\frac{3}{8}$

Step 5

The result can be shown in multiple forms.

Exact Form:

\frac{3}{8}

$\frac{3}{8}$

Decimal Form:

0.375

$0.375$