Вычисли значения выражений a) 2 1/3 + 1 1/3

- a) $2\frac{1}{3} + 1\frac{1}{3} = 2 + 1 + \frac{1}{3} + \frac{1}{3} = 3 + \frac{2}{3} = 3\frac{2}{3}$ - б) $3\frac{1}{7} + 2\frac{2}{7} = 3 + 2 + \frac{1}{7} + \frac{2}{7} = 5 + \frac{3}{7} = 5\frac{3}{7}$ - в) $2\frac{5}{5} + 1\frac{1}{3} = 2 + 1 + \frac{5}{5} + \frac{1}{3} = 3 + 1 + \frac{1}{3} = 4\frac{1}{3}$ - г) $3\frac{3}{7} + 4\frac{4}{9} = 3 + 4 + \frac{3}{7} + \frac{4}{9} = 7 + \frac{27}{63} + \frac{28}{63} = 7 + \frac{55}{63} = 7\frac{55}{63}$ - д) $5\frac{5}{9} - 1\frac{1}{6} = 5 - 1 + \frac{5}{9} - \frac{1}{6} = 4 + \frac{10}{18} - \frac{3}{18} = 4 + \frac{7}{18} = 4\frac{7}{18}$ - е) $3\frac{3}{4} - 1\frac{1}{3} = 3 - 1 + \frac{3}{4} - \frac{1}{3} = 2 + \frac{9}{12} - \frac{4}{12} = 2 + \frac{5}{12} = 2\frac{5}{12}$ - ж) $6\frac{1}{9} + 1\frac{1}{3} = 6 + 1 + \frac{1}{9} + \frac{1}{3} = 7 + \frac{1}{9} + \frac{3}{9} = 7 + \frac{4}{9} = 7\frac{4}{9}$ - з) $5\frac{5}{7} - 3\frac{3}{10} = 5 - 3 + \frac{5}{7} - \frac{3}{10} = 2 + \frac{50}{70} - \frac{21}{70} = 2 + \frac{29}{70} = 2\frac{29}{70}$ - и) $2\frac{1}{2} - 1\frac{3}{8} = 2 - 1 + \frac{1}{2} - \frac{3}{8} = 1 + \frac{4}{8} - \frac{3}{8} = 1 + \frac{1}{8} = 1\frac{1}{8}$