Вариант 2: 1. Выполните действия: a) \(\frac{16}{23} - \frac{12}{23} + \frac{3}{23}\) b) \(2\frac{5}{11} + 6\frac{7}{11}\) c) \(7 - 4\frac{4}{5}\) d) \(5\frac{4}{13} - 3\frac{9}{13}\)

Вариант 2

1. Выполните действия:

• a) \($\frac{16}{23}-\frac{12}{23}+\frac{3}{23}$\)

\( \frac{16-12+3}{23} = \frac{7}{23} \)

• б) \($2\frac{5}{11}+6\frac{7}{11}$\)

\( (2+6) + (\frac{5}{11}+\frac{7}{11}) = 8 + \frac{12}{11} = 8 + 1\frac{1}{11} = 9\frac{1}{11} \)

• в) \($7-4\frac{4}{5}$\)

\( 6\frac{5}{5} - 4\frac{4}{5} = (6-4) + (\frac{5}{5}-\frac{4}{5}) = 2 + \frac{1}{5} = 2\frac{1}{5} \)

• г) \($5\frac{4}{13}-3\frac{9}{13}$\)

\( 4\frac{17}{13} - 3\frac{9}{13} = (4-3) + (\frac{17}{13}-\frac{9}{13}) = 1 + \frac{8}{13} = 1\frac{8}{13} \)