General formula for an infinite geometric series sum $a+(a\cdot r)+(a\cdot r^2)+(a\cdot r^3)+...$ with $\left|r\right|<1$ is
$\text{XXX}\frac{a}{1-r}$

For the given series $a=2$ and $r=\frac{1}{5}$
So the sum is
$\text{XXX}\frac{2}{1-\frac{1}{5}}=\frac{2}{(\frac{}{}}$