$\text{$\dfrac{1}{6}-\dfrac{2}{5}+\dfrac{9}{7}.\dfrac{3}{5}$}$
$\text{= $\dfrac{1}{6}-\dfrac{2}{5}+\dfrac{27}{35}$}$
$\text{= $\dfrac{5}{30}-\dfrac{12}{30}+\dfrac{27}{35}$}$
$\text{= $\dfrac{-7}{30}+\dfrac{27}{35}$}$
$\text{= $\dfrac{-49}{210}+\dfrac{162}{210}$}$
$\text{= $\dfrac{113}{210}$}$
$\text{Mã đó là MRZRYVE.}$