Basic Math Examples

\frac{1}{64} - \frac{1}{128}

$\frac{1}{64} - \frac{1}{128}$

Step 1

To write

\frac{1}{64}

$\frac{1}{64}$ as a fraction with a common denominator, multiply by

\frac{2}{2}

$\frac{2}{2}$ .

\frac{1}{64} \cdot \frac{2}{2} - \frac{1}{128}

$\frac{1}{64} \cdot \frac{2}{2} - \frac{1}{128}$

Step 2

Write each expression with a common denominator of

128

$128$ , by multiplying each by an appropriate factor of

1

$1$ .

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Step 2.1

Multiply

\frac{1}{64}

$\frac{1}{64}$ by

\frac{2}{2}

$\frac{2}{2}$ .

\frac{2}{64 \cdot 2} - \frac{1}{128}

$\frac{2}{64 \cdot 2} - \frac{1}{128}$

Step 2.2

Multiply

64

$64$ by

2

$2$ .

\frac{2}{128} - \frac{1}{128}

$\frac{2}{128} - \frac{1}{128}$

\frac{2}{128} - \frac{1}{128}

$\frac{2}{128} - \frac{1}{128}$

Step 3

Combine the numerators over the common denominator.

\frac{2 - 1}{128}

$\frac{2 - 1}{128}$

Step 4

Subtract

1

$1$ from

2

$2$ .

\frac{1}{128}

$\frac{1}{128}$

Step 5

The result can be shown in multiple forms.

Exact Form:

\frac{1}{128}

$\frac{1}{128}$

Decimal Form:

0.0078125

$0.0078125$