Вычисли значения выражений: А) 1/2 - 1/8

- A) $$\frac{1}{2} - \frac{1}{8} = \frac{4}{8} - \frac{1}{8} = \frac{3}{8}$$ - Б) $$\frac{2}{3} - \frac{4}{9} = \frac{6}{9} - \frac{4}{9} = \frac{2}{9}$$ - В) $$\frac{7}{10} - \frac{1}{5} = \frac{7}{10} - \frac{2}{10} = \frac{5}{10} = \frac{1}{2}$$ - Г) $$\frac{5}{9} - \frac{5}{12} = \frac{20}{36} - \frac{15}{36} = \frac{5}{36}$$ - Д) $$\frac{1}{2} - \frac{1}{3} = \frac{3}{6} - \frac{2}{6} = \frac{1}{6}$$ - E) $$\frac{2}{3} - \frac{1}{5} = \frac{10}{15} - \frac{3}{15} = \frac{7}{15}$$ - Ё) $$\frac{3}{10} - \frac{2}{15} = \frac{9}{30} - \frac{4}{30} = \frac{5}{30} = \frac{1}{6}$$ - Ж) $$\frac{9}{10} - \frac{3}{4} = \frac{18}{20} - \frac{15}{20} = \frac{3}{20}$$ - З) $$\frac{1}{3} - \frac{1}{4} = \frac{4}{12} - \frac{3}{12} = \frac{1}{12}$$ - И) $$\frac{5}{6} - \frac{1}{15} = \frac{25}{30} - \frac{2}{30} = \frac{23}{30}$$ - Й) $$\frac{11}{12} - \frac{3}{8} = \frac{22}{24} - \frac{9}{24} = \frac{13}{24}$$ - К) $$\frac{5}{9} - \frac{1}{6} = \frac{10}{18} - \frac{3}{18} = \frac{7}{18}$$ - Л) $$\frac{7}{8} - \frac{5}{6} = \frac{21}{24} - \frac{20}{24} = \frac{1}{24}$$ - М) $$\frac{5}{6} - \frac{2}{3} = \frac{5}{6} - \frac{4}{6} = \frac{1}{6}$$ - Н) $$\frac{17}{18} - \frac{5}{6} = \frac{17}{18} - \frac{15}{18} = \frac{2}{18} = \frac{1}{9}$$ - О) $$\frac{6}{7} - \frac{3}{10} = \frac{60}{70} - \frac{21}{70} = \frac{39}{70}$$ - П) $$\frac{1}{4} - \frac{1}{5} = \frac{5}{20} - \frac{4}{20} = \frac{1}{20}$$ - Р) $$\frac{7}{9} - \frac{1}{4} = \frac{28}{36} - \frac{9}{36} = \frac{19}{36}$$ - С) $$\frac{1}{2} - \frac{1}{4} + \frac{2}{5} = \frac{10}{20} - \frac{5}{20} + \frac{8}{20} = \frac{13}{20}$$ - Т) $$\frac{1}{3} - \frac{1}{9} + \frac{1}{6} = \frac{6}{18} - \frac{2}{18} + \frac{3}{18} = \frac{7}{18}$$ - У) $$\frac{3}{4} - \frac{1}{2} + \frac{7}{8} = \frac{6}{8} - \frac{4}{8} + \frac{7}{8} = \frac{9}{8}$$ - Ф) $$\frac{5}{6} - \frac{2}{3} + \frac{1}{4} = \frac{10}{12} - \frac{8}{12} + \frac{3}{12} = \frac{5}{12}$$ - Х) $$\frac{9}{10} - \frac{1}{20} + \frac{3}{4} = \frac{18}{20} - \frac{1}{20} + \frac{15}{20} = \frac{32}{20} = \frac{8}{5}$$ - Ц) $$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = \frac{30}{60} + \frac{20}{60} + \frac{15}{60} + \frac{12}{60} + \frac{10}{60} = \frac{87}{60} = \frac{29}{20}$$ - Щ) $$\frac{3}{13} - \frac{3}{260} = \frac{60}{260} - \frac{3}{260} = \frac{57}{260}$$ - Ъ) $$\frac{21}{22} - \frac{31}{33} = \frac{63}{66} - \frac{62}{66} = \frac{1}{66}$$ - Ы) $$\frac{1}{11} - \frac{1}{770} = \frac{70}{770} - \frac{1}{770} = \frac{69}{770}$$