\[\boxed{\mathbf{771\ (771)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 10\ :6 = \frac{10}{6} = \frac{6 + 4}{6} = 1\frac{4}{6}\]
\[2)\ 18\ :5 = \frac{18}{5} = \frac{15 + 3}{5} = 3\frac{3}{5}\]
\[3)\ 23\ :11 = \frac{23}{11} = \frac{22 + 1}{11} = 2\frac{1}{11}\]
\[4)\ 19\ :6 = \frac{19}{6} = \frac{18 + 1}{6} = 3\frac{1}{6}\]
\[5)\ 425\ :50 = \frac{425}{50} = \frac{400 + 25}{50} =\]
\[= 8\frac{25}{50}\]
\[6)\ 55\ :6 = \frac{55}{6} = \frac{54 + 1}{6} = 9\frac{1}{6}\]
\[\boxed{\mathbf{771}.\ }\]
\[1)\ EF;FS;ST;ET.\]
\[2)\ STPK;MNKP;FSKN.\]
\[3)\ MP;FS;ET.\]
\[4)\ MEFN;METP.\]
\[5)\ MEFN.\]