Evaluate
\frac{\pi }{4}\approx 0.785398163
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\frac{1}{8}\pi \times 2
Reduce the fraction \frac{45}{360} to lowest terms by extracting and canceling out 45.
\frac{2}{8}\pi
Multiply \frac{1}{8} and 2 to get \frac{2}{8}.
\frac{1}{4}\pi
Reduce the fraction \frac{2}{8} to lowest terms by extracting and canceling out 2.
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