ГДЗ по математике 6 класс Мерзляк Задание 1005

\[\boxed{\mathbf{1005\ (996).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\frac{7}{8} - \left( - \frac{3}{10} \right) = \frac{35}{40} + \frac{12}{40} =\]

\[= \frac{47}{40} = 1\frac{7}{40}\]

\[2)\frac{11}{12} - \frac{17}{18} = \frac{33}{36} - \frac{34}{36} = - \frac{1}{36}\]

\[3) - \frac{3}{7} - \frac{9}{14} = - \frac{6}{14} - \frac{9}{14} =\]

\[= - \frac{15}{14} = - 1\frac{1}{14}\]

\[4) - \frac{5}{9} - \left( - \frac{3}{4} \right) =\]

\[= - \frac{20}{36} + \frac{27}{36} = \frac{7}{36}\]

\[5)\ 3\frac{11}{12} - \left( - 4\frac{4}{9} \right) = 3\frac{33}{36} +\]

\[+ 4\frac{16}{36} = 7\frac{49}{36} = 8\frac{13}{36}\]

\[6)\ 4\frac{5}{17} - 6 = - 1\frac{12}{17}\]

\[7)\ 1\frac{3}{8} - 3\frac{1}{4} = 1\frac{3}{8} - 3\frac{2}{8} = - 1\frac{7}{8}\]

\[8) - 2\frac{14}{15} - 1\frac{19}{45} = - 2\frac{42}{45} -\]

\[- 1\frac{19}{45} = - 3\frac{61}{45} = - 4\frac{16}{45}\]

\[9) - 3\frac{1}{6} - \left( - 1\frac{1}{4} \right) = - 3\frac{2}{12} +\]

\[+ 1\frac{3}{12} = - 1\frac{11}{12}\]