ГДЗ по математике 5 класс Мерзляк ФГОС Задание 769

 

\[\boxed{\mathbf{769\ (769)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ \frac{9}{4} = \frac{8 + 1}{4} = \frac{8}{4} + \frac{1}{4} = 2 + \frac{1}{4} =\]

\[= 2\frac{1}{4}\]

\[2)\ \frac{16}{7} = \frac{14 + 2}{7} = \frac{14}{7} + \frac{2}{7} =\]

\[= 2 + \frac{2}{7} = 2\frac{2}{7}\]

\[3)\ \frac{29}{8} = \frac{24 + 5}{8} = \frac{24}{8} + \frac{5}{8} =\]

\[= 3 + \frac{5}{8} = 3\frac{5}{8}\]

\[4)\ \frac{55}{9} = \frac{54 + 1}{9} = \frac{54}{9} + \frac{1}{9} =\]

\[= 6 + \frac{1}{9} = 6\frac{1}{9}\]

\[5)\ \frac{83}{24} = \frac{72 + 11}{24} = \frac{72}{24} + \frac{11}{24} =\]

\[= 3 + \frac{11}{24} = 3\frac{11}{24}\]

\[6)\ \frac{96}{19} = \frac{95 + 1}{19} = \frac{95}{19} + \frac{1}{19} =\]

\[= 5 + \frac{1}{19} = 5\frac{1}{19}\]

\[\boxed{\mathbf{769}.\ }\]

\[1)\ Вафли:\]

\[1260\ :105 = 12\ (пачек) -\]

\[вафель\ купили.\]

\[210 \cdot 9 = 1890\ (р) - заплатили\ \]

\[за\ печенье.\]

\[3)\ 4575 - (1260 + 1890) =\]

\[= 4575 - 3150 = 1425\ (р.) -\]

\[стоимость\ конфет.\]

\[4)\ 1425\ :5 = 285\ (р.) - цена\ \]

\[конфет.\]