Evaluate
\frac{\pi }{1200000}\approx 0.000002618
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\frac{25\pi \times 10^{-7}}{3}
Cancel out 2\times 2 in both numerator and denominator.
\frac{25\pi \times \frac{1}{10000000}}{3}
Calculate 10 to the power of -7 and get \frac{1}{10000000}.
\frac{\frac{1}{400000}\pi }{3}
Multiply 25 and \frac{1}{10000000} to get \frac{1}{400000}.
\frac{1}{1200000}\pi
Divide \frac{1}{400000}\pi by 3 to get \frac{1}{1200000}\pi .
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