\[\boxed{\mathbf{895\ (895)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 2,46 + a + 81,139 + 14,8 =\]
\[= a + 98,399\]
\[\boxed{\mathbf{895}.\ }\]
\[1)\ \frac{5}{1} = 5\]
\[2)\ \frac{16}{4} = 4\]
\[3)\ \frac{28}{7} = 4\]
\[4)\ \frac{99}{11} = 9\]