\[\boxed{\text{479}\text{\ (479)}\text{.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ \frac{1}{6} < 0,2 = \frac{1}{5}\text{\ \ }\]
\[2)\ \frac{7}{9} = 0,(7) > 0,77\ \ \]
\[3) - 1,(645) < - 1,(643)\text{.\ }\]