15 \% \div 420
Evaluate
\frac{1}{2800}\approx 0.000357143
Factor
\frac{1}{2 ^ {4} \cdot 5 ^ {2} \cdot 7} = 0.00035714285714285714
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\frac{15}{100\times 420}
Express \frac{\frac{15}{100}}{420} as a single fraction.
\frac{15}{42000}
Multiply 100 and 420 to get 42000.
\frac{1}{2800}
Reduce the fraction \frac{15}{42000} to lowest terms by extracting and canceling out 15.
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