Evaluate
\frac{20\pi }{3}\approx 20.943951024
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\frac{5\pi \times 4}{3}
Divide \frac{5\pi }{3} by \frac{1}{4} by multiplying \frac{5\pi }{3} by the reciprocal of \frac{1}{4}.
\frac{20\pi }{3}
Multiply 5 and 4 to get 20.
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