\frac{ 400 }{ 40000 } \times 100 \%
Evaluate
\frac{1}{100}=0.01
Factor
\frac{1}{2 ^ {2} \cdot 5 ^ {2}} = 0.01
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\frac{400}{40000}\times 1
Divide 100 by 100 to get 1.
\frac{1}{100}\times 1
Reduce the fraction \frac{400}{40000} to lowest terms by extracting and canceling out 400.
\frac{1}{100}
Multiply \frac{1}{100} and 1 to get \frac{1}{100}.
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