Evaluate pi/2-1/2

$\frac{π}{2} - \frac{1}{2}$

Combine the numerators over the common denominator.

$\frac{π - 1}{2}$

The result can be shown in multiple forms.

Exact Form:

$\frac{π - 1}{2}$

Decimal Form:

$1.07079632 \dots$

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