Найди значение выражения 36:1 2/7–19,8+2 5/6.

Ответ:

\[36\ :1\frac{2}{7} - 19,8 + 2\frac{5}{6} = \frac{36}{1}\ :\frac{9}{7} - 19,8 + \frac{17}{6} =\]

\[= \frac{36}{1} \cdot \frac{7}{9} - 19,8 + \frac{17}{6} =\]

\[= 28 - 19,8 + \frac{17}{6} = 8,2 + \frac{17}{6} =\]

\[= \frac{82^{\backslash 3}}{10} + \frac{17^{\backslash 5}}{6} = \frac{246 + 85}{30} = \frac{331}{30} = 11\frac{1}{30}\]