2. Решить: 1) 2 − 1/9 + 4/3; 2) 5 1/6 − 5/12; 3) 3 4/10 · 4 3/5.

1) Приведём дроби к знаменателю 9:

\(2 - \frac{1}{9} + \frac{4}{3} = \frac{18}{9} - \frac{1}{9} + \frac{12}{9} = \frac{29}{9} = 3\frac{2}{9}\).

2) \(5\frac{1}{6} - \frac{5}{12} = \frac{31}{6} - \frac{5}{12} = \frac{62}{12} - \frac{5}{12} = \frac{57}{12} = \frac{19}{4} = 4\frac{3}{4}\).

3) \(3\frac{4}{10} \cdot 4\frac{3}{5} = \frac{17}{5} \cdot \frac{23}{5} = \frac{391}{25} = 15\frac{16}{25}\).

Ответ: 1) \(3\frac{2}{9}\); 2) \(4\frac{3}{4}\); 3) \(15\frac{16}{25}\).