Реши примеры на сложение и вычитание дробей

Конечно, давай решим эти примеры вместе! 1. $\\frac{1}{9} + \\frac{2}{5} = \\frac{5}{45} + \\frac{18}{45} = \\frac{23}{45}$ 2. $\\frac{1}{3} - \\frac{1}{5} = \\frac{5}{15} - \\frac{3}{15} = \\frac{2}{15}$ 3. $\\frac{5}{11} + \\frac{5}{6} = \\frac{30}{66} + \\frac{55}{66} = \\frac{85}{66} = 1\\frac{19}{66}$ 4. $\\frac{4}{7} - \\frac{2}{9} = \\frac{36}{63} - \\frac{14}{63} = \\frac{22}{63}$ 5. $\\frac{1}{3} + \\frac{4}{5} = \\frac{5}{15} + \\frac{12}{15} = \\frac{17}{15} = 1\\frac{2}{15}$ 6. $\\frac{7}{10} - \\frac{2}{6} = \\frac{42}{60} - \\frac{20}{60} = \\frac{22}{60} = \\frac{11}{30}$ 7. $\\frac{1}{10} + \\frac{3}{9} = \\frac{9}{90} + \\frac{30}{90} = \\frac{39}{90} = \\frac{13}{30}$ 8. $\\frac{6}{13} - \\frac{1}{3} = \\frac{18}{39} - \\frac{13}{39} = \\frac{5}{39}$ 9. $\\frac{1}{19} + \\frac{1}{2} = \\frac{2}{38} + \\frac{19}{38} = \\frac{21}{38}$ 10. $\\frac{5}{12} - \\frac{1}{7} = \\frac{35}{84} - \\frac{12}{84} = \\frac{23}{84}$ 11. $\\frac{4}{17} + \\frac{1}{10} = \\frac{40}{170} + \\frac{17}{170} = \\frac{57}{170}$ 12. $\\frac{8}{11} - \\frac{1}{9} = \\frac{72}{99} - \\frac{11}{99} = \\frac{61}{99}$ 13. $\\frac{5}{12} + \\frac{1}{7} = \\frac{35}{84} + \\frac{12}{84} = \\frac{47}{84}$ 14. $\\frac{10}{13} - \\frac{3}{8} = \\frac{80}{104} - \\frac{39}{104} = \\frac{41}{104}$