Răspuns :

[tex] \frac{212-2}{990}[/tex]  =  [tex] \frac{210}{990} [/tex]  =  [tex] \frac{7}{33} [/tex]


[tex]1 \frac{27}{99}=1 \frac{3}{11}= \frac{1*11+3}{11}= \frac{14}{11} [/tex]


[tex] \frac{7}{33}: \frac{14}{11}= \frac{7}{33}* \frac{11}{14}= \frac{1}{3}* \frac{1}{2}= \frac{1}{6} [/tex]