Precalculus Examples

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

Step 1

Combine the numerators over the common denominator.

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

Step 2

The result can be shown in multiple forms.

Exact Form:

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

Decimal Form:

$0.20710678 \dots$