Calculate the numerical value for $\frac{2mn^2}{a}$ when $a=2$, $m=\frac{1}{2}$ and $n=\frac{1}{5}$. Replace the unknowns with their corresponding values
Calculate the power $\left(\frac{1}{5}\right)^2$
Multiply the fraction and term in $2\cdot \left(\frac{1}{2}\right)\cdot \left(\frac{1}{25}\right)$
Divide fractions $\frac{\frac{1}{25}}{2}$ with Keep, Change, Flip: $\frac{a}{b}\div c=\frac{a}{b}\div\frac{c}{1}=\frac{a}{b}\times\frac{1}{c}=\frac{a}{b\cdot c}$
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