Evaluate
\frac{5\pi }{6}\approx 2.617993878
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\frac{\pi }{6}+\frac{2\times 2\pi }{6}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 6 and 3 is 6. Multiply \frac{2\pi }{3} times \frac{2}{2}.
\frac{\pi +2\times 2\pi }{6}
Since \frac{\pi }{6} and \frac{2\times 2\pi }{6} have the same denominator, add them by adding their numerators.
\frac{\pi +4\pi }{6}
Do the multiplications in \pi +2\times 2\pi .
\frac{5\pi }{6}
Combine like terms in \pi +4\pi .
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