Solve for L
L=0.003175
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\frac{1.27}{400}=L
Divide both sides by 400.
\frac{127}{40000}=L
Expand \frac{1.27}{400} by multiplying both numerator and the denominator by 100.
L=\frac{127}{40000}
Swap sides so that all variable terms are on the left hand side.
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