Evaluate
\frac{\pi }{2}\approx 1.570796327
Expand
\frac{\pi}{2} = 1.5707963267948966
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\frac{\frac{3\pi +5\pi }{8}}{2}
Since \frac{3\pi }{8} and \frac{5\pi }{8} have the same denominator, add them by adding their numerators.
\frac{\frac{8\pi }{8}}{2}
Combine like terms in 3\pi +5\pi .
\frac{\pi }{2}
Cancel out 8 and 8.
\frac{\frac{3\pi +5\pi }{8}}{2}
Since \frac{3\pi }{8} and \frac{5\pi }{8} have the same denominator, add them by adding their numerators.
\frac{\frac{8\pi }{8}}{2}
Combine like terms in 3\pi +5\pi .
\frac{\pi }{2}
Cancel out 8 and 8.
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