Выполни сложение или вычитание: 1/2 + 3/8

Конечно, давай помогу! Тебе нужно решить примеры на сложение и вычитание дробей. Вот ответы: а) $\frac{1}{2} + \frac{3}{8} = \frac{4}{8} + \frac{3}{8} = \frac{7}{8}$ б) $\frac{2}{7} + \frac{5}{14} = \frac{4}{14} + \frac{5}{14} = \frac{9}{14}$ в) $\frac{3}{5} + \frac{4}{15} = \frac{9}{15} + \frac{4}{15} = \frac{13}{15}$ г) $\frac{1}{8} + \frac{3}{16} = \frac{2}{16} + \frac{3}{16} = \frac{5}{16}$ д) $\frac{2}{9} + \frac{5}{18} = \frac{4}{18} + \frac{5}{18} = \frac{9}{18} = \frac{1}{2}$ е) $\frac{8}{13} - \frac{1}{26} = \frac{16}{26} - \frac{1}{26} = \frac{15}{26}$ ж) $\frac{7}{15} - \frac{7}{30} = \frac{14}{30} - \frac{7}{30} = \frac{7}{30}$ з) $\frac{2}{19} - \frac{1}{38} = \frac{4}{38} - \frac{1}{38} = \frac{3}{38}$ и) $\frac{5}{7} - \frac{3}{14} = \frac{10}{14} - \frac{3}{14} = \frac{7}{14} = \frac{1}{2}$ к) $\frac{4}{21} - \frac{1}{7} = \frac{4}{21} - \frac{3}{21} = \frac{1}{21}$ л) $\frac{7}{20} + \frac{11}{50} = \frac{35}{100} + \frac{22}{100} = \frac{57}{100}$ м) $\frac{5}{9} - \frac{1}{3} = \frac{5}{9} - \frac{3}{9} = \frac{2}{9}$ н) $\frac{11}{40} + \frac{17}{120} = \frac{33}{120} + \frac{17}{120} = \frac{50}{120} = \frac{5}{12}$ о) $\frac{17}{33} - \frac{5}{22} = \frac{34}{66} - \frac{15}{66} = \frac{19}{66}$ п) $\frac{27}{76} - 0 = \frac{27}{76}$ p) $\frac{9}{20} + \frac{5}{8} = \frac{18}{40} + \frac{25}{40} = \frac{43}{40}$ с) $\frac{2}{7} + \frac{13}{28} = \frac{8}{28} + \frac{13}{28} = \frac{21}{28} = \frac{3}{4}$ т) $\frac{5}{13} - \frac{14}{39} = \frac{15}{39} - \frac{14}{39} = \frac{1}{39}$ у) $\frac{5}{8} - \frac{2}{7} = \frac{35}{56} - \frac{16}{56} = \frac{19}{56}$ ф) $\frac{3}{4} + \frac{5}{12} = \frac{9}{12} + \frac{5}{12} = \frac{14}{12} = \frac{7}{6}$ х) $\frac{15}{23} - \frac{27}{46} = \frac{30}{46} - \frac{27}{46} = \frac{3}{46}$ ц) $\frac{9}{25} - \frac{14}{117} = \frac{1053}{2925} - \frac{350}{2925} = \frac{703}{2925}$ ч) $\frac{17}{35} - \frac{13}{28} = \frac{68}{140} - \frac{65}{140} = \frac{3}{140}$ ш) $1 - \frac{2}{7} = \frac{7}{7} - \frac{2}{7} = \frac{5}{7}$ щ) $\frac{13}{40} - \frac{11}{60} = \frac{39}{120} - \frac{22}{120} = \frac{17}{120}$ э) $\frac{5}{12} + \frac{3}{4} = \frac{5}{12} + \frac{9}{12} = \frac{14}{12} = \frac{7}{6}$