Решебник по математике 6 класс Ерина Никольский рабочая тетрадь Часть 1, 2 Часть 1 | Страница 96

\[\mathbf{Страница\ 96.}\]

\[\boxed{\mathbf{3.}}\]

\[\textbf{а)} - 5\frac{1}{9} + \left( - 2\frac{1}{3} \right) =\]

\[= - 5\frac{1}{9} + \left( - 2\frac{3}{9} \right) = - 7\frac{4}{9}\]

\[- 8\frac{1}{7} + \left( - 3\frac{2}{7} \right) = - \frac{113}{7}\]

\[- 13\frac{4}{5} + \left( - 5\frac{3}{5} \right) = - - 18\frac{7}{5} =\]

\[= - 19\frac{2}{5}\]

\[\textbf{б)} - 8\frac{1}{5} + \left( - 1\frac{4}{5} \right) =\]

\[= - 9\frac{5}{5} = - 10\]

\[- 3\frac{1}{3} + \left( - 2\frac{1}{3} \right) = - 5\frac{2}{3}\]

\[- 6\frac{2}{9} + \left( - 3\frac{8}{9} \right) = - 9\frac{10}{9} =\]

\[= - 10\frac{1}{9}\]

\[\boxed{\mathbf{4.}}\]

\[\textbf{а)} - 7\frac{3}{8} + 1\frac{3}{4} = - 7\frac{3}{8} + 1\frac{6}{8} =\]

\[= - 6\frac{11}{8} + 1\frac{6}{8} = - 5\frac{5}{8}\]

\[\textbf{б)}\ 16\frac{5}{11} + \left( - 23\frac{2}{11} \right) =\]

\[= - 22\frac{13}{11} + 16\frac{5}{11} = - 6\frac{8}{11}\]

\[\textbf{в)}\ 27\frac{2}{5} + \left( - 51\frac{1}{5} \right) =\]

\[= - 50\frac{6}{5} + 27\frac{2}{5} = - 23\frac{4}{5}\]

\[\textbf{г)}\ 6\frac{1}{14} + \left( - 9\frac{5}{7} \right) =\]

\[= - 9\frac{10}{14} + 6\frac{1}{14} = - 3\frac{9}{14}\]

\[\textbf{д)}\ 19\frac{5}{16} + \left( - 7\frac{1}{8} \right) =\]

\[= 19\frac{5}{16} - 7\frac{2}{16} = 8\frac{3}{16}\]

\[\textbf{е)}\ 3\frac{1}{6} + \left( - \frac{11}{12} \right) = 3\frac{2}{12} - \frac{11}{12} =\]

\[= 2\frac{14}{12} - \frac{11}{12} = 2\frac{3}{12} = 2\frac{1}{4}\]

\[\boxed{\mathbf{5.}}\]

\[\textbf{а)} - 3 - 5\frac{1}{2} = - 8\frac{1}{2}\]

\[- 9 + \frac{5}{16} = - 8\frac{16}{16} + \frac{5}{16} = - 8\frac{11}{16}\]

\[- 8\frac{1}{5} - 4 = - 12\frac{1}{5}\]

\[\textbf{б)} - 8 - 6\frac{1}{7} = - 14\frac{1}{7}\]

\[- 10 + \frac{7}{11} = - 9\frac{11}{11} + \frac{7}{11} = - 9\frac{4}{11}\]

\[- 6\frac{1}{3} - 4 = - 10\frac{1}{3}\]

## Часть 2