Решебник по математике 5 класс Мерзляк ФГОС Задание 968

\[\boxed{\ \mathbf{968\ (968)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ 21,6 - 12,6\ :18 + 6 =\]

\[= 20,9 + 6 = 26,9\]

\[2)\ (21,6 - 12,6)\ :18 + 6 =\]

\[= 0,5 + 6 = 6,5\]

\[3)\ (21,6 - 12,6)\ :(18 + 6) =\]

\[= 9\ :24 = 0,375\]

\[4)\ 21,6 - 12,6\ :(18 + 6) =\]

\[= 21,6 - 12,6\ :24 = 21,075\]

\[\boxed{\mathbf{968}\mathbf{.}\mathbf{\ }}\]

\[1)\ \frac{7}{12} + \frac{3}{12} = \frac{10}{12} = \frac{5}{6}\]

\[2)\ \frac{32}{39} - \frac{6}{39} = \frac{26}{39} = \frac{2}{3}\]

\[3)\ 4\frac{17}{45} + 3\frac{13}{45} = 7\frac{30}{45} = 7\frac{2}{3}\]

\[4)\ 9\frac{59}{63} - 5\frac{24}{63} = 4\frac{35}{63} = 4\frac{5}{9}\]