Выполни действия: $5 \frac{1}{4} + 5 \frac{6}{7}$

a) $5 \frac{1}{4} + 5 \frac{6}{7} = 5 + 5 + \frac{1}{4} + \frac{6}{7} = 10 + \frac{7}{28} + \frac{24}{28} = 10 + \frac{31}{28} = 10 + 1 \frac{3}{28} = 11 \frac{3}{28}$ б) $7 \frac{5}{6} - 6 \frac{8}{9} = 7 - 6 + \frac{5}{6} - \frac{8}{9} = 1 + \frac{15}{18} - \frac{16}{18} = 1 - \frac{1}{18} = \frac{18}{18} - \frac{1}{18} = \frac{17}{18}$ в) $3 \frac{4}{10} - \frac{3}{15} = 3 \frac{6}{15} - \frac{3}{15} = 3 \frac{3}{15} = 3 \frac{1}{5}$ г) $5 - 3 \frac{2}{7} = 4 \frac{7}{7} - 3 \frac{2}{7} = 1 \frac{5}{7}$ д) $4 \frac{3}{8} : 9 = \frac{35}{8} : \frac{9}{1} = \frac{35}{8} * \frac{1}{9} = \frac{35}{72}$ е) $5 \frac{8}{9} : 10 = \frac{53}{9} : \frac{10}{1} = \frac{53}{9} * \frac{1}{10} = \frac{53}{90}$ ж) $6 \frac{2}{7} : 1 \frac{3}{7} = \frac{44}{7} : \frac{10}{7} = \frac{44}{7} * \frac{7}{10} = \frac{44}{10} = \frac{22}{5} = 4 \frac{2}{5}$ з) $6 \frac{3}{5} * 10 = \frac{33}{5} * \frac{10}{1} = \frac{330}{5} = 66$