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МатематикаВопрос:
Выполните вычитание Вариант 2 1) \(\frac{7}{20} - \frac{11}{50} =\) 2) \(\frac{17}{33} - \frac{5}{22} =\) 3) \(\frac{9}{20} - \frac{5}{8} =\) 4) \(\frac{4}{7} - \frac{13}{28} =\) 5) \(\frac{5}{13} - \frac{14}{39} =\) 6) \(\frac{3}{8} - \frac{5}{12} =\) 7) \(\frac{3}{4} - \frac{5}{12} =\) 8) \(\frac{15}{23} - \frac{27}{46} =\) 9) \(\frac{9}{25} - \frac{14}{100} =\) 10) \(\frac{17}{35} - \frac{13}{28} =\)
Ответ:
Выполним вычитание дробей.
- \(\frac{7}{20} - \frac{11}{50} = \frac{7 \cdot 5}{20 \cdot 5} - \frac{11 \cdot 2}{50 \cdot 2} = \frac{35}{100} - \frac{22}{100} = \frac{35-22}{100} = \frac{13}{100}\)
- \(\frac{17}{33} - \frac{5}{22} = \frac{17 \cdot 2}{33 \cdot 2} - \frac{5 \cdot 3}{22 \cdot 3} = \frac{34}{66} - \frac{15}{66} = \frac{34-15}{66} = \frac{19}{66}\)
- \(\frac{9}{20} - \frac{5}{8} = \frac{9 \cdot 2}{20 \cdot 2} - \frac{5 \cdot 5}{8 \cdot 5} = \frac{18}{40} - \frac{25}{40} = \frac{18-25}{40} = -\frac{7}{40}\)
- \(\frac{4}{7} - \frac{13}{28} = \frac{4 \cdot 4}{7 \cdot 4} - \frac{13}{28} = \frac{16}{28} - \frac{13}{28} = \frac{16-13}{28} = \frac{3}{28}\)
- \(\frac{5}{13} - \frac{14}{39} = \frac{5 \cdot 3}{13 \cdot 3} - \frac{14}{39} = \frac{15}{39} - \frac{14}{39} = \frac{15-14}{39} = \frac{1}{39}\)
- \(\frac{3}{8} - \frac{5}{12} = \frac{3 \cdot 3}{8 \cdot 3} - \frac{5 \cdot 2}{12 \cdot 2} = \frac{9}{24} - \frac{10}{24} = \frac{9-10}{24} = -\frac{1}{24}\)
- \(\frac{3}{4} - \frac{5}{12} = \frac{3 \cdot 3}{4 \cdot 3} - \frac{5}{12} = \frac{9}{12} - \frac{5}{12} = \frac{9-5}{12} = \frac{4}{12} = \frac{1}{3}\)
- \(\frac{15}{23} - \frac{27}{46} = \frac{15 \cdot 2}{23 \cdot 2} - \frac{27}{46} = \frac{30}{46} - \frac{27}{46} = \frac{30-27}{46} = \frac{3}{46}\)
- \(\frac{9}{25} - \frac{14}{100} = \frac{9 \cdot 4}{25 \cdot 4} - \frac{14}{100} = \frac{36}{100} - \frac{14}{100} = \frac{36-14}{100} = \frac{22}{100} = \frac{11}{50}\)
- \(\frac{17}{35} - \frac{13}{28} = \frac{17 \cdot 4}{35 \cdot 4} - \frac{13 \cdot 5}{28 \cdot 5} = \frac{68}{140} - \frac{65}{140} = \frac{68-65}{140} = \frac{3}{140}\)
Ответ: смотри решение выше
Похожие
- Выполните сложение Вариант 2 1) \(\frac{1}{1} + \frac{1}{12} =\) 2) \(\frac{1}{6} + \frac{1}{3} =\) 3) \(\frac{7}{8} + \frac{3}{4} =\) 4) \(\frac{4}{7} + \frac{2}{21} =\) 5) \(\frac{9}{12} + \frac{3}{4} =\) 6) \(\frac{8}{9} + \frac{1}{3} =\) 7) \(\frac{4}{4} + \frac{7}{15} =\) 8) \(\frac{2}{21} + \frac{5}{14} =\) 9) \(\frac{3}{18} + \frac{5}{27} =\) 10) \(\frac{3}{15} + \frac{7}{20} =\)
- Выполните сложение Вариант 3 1) \(\frac{3}{8} + \frac{7}{16} =\) 2) \(\frac{5}{6} + \frac{11}{18} =\) 3) \(\frac{7}{11} + \frac{7}{33} =\) 4) \(\frac{3}{9} + \frac{5}{18} =\) 5) \(\frac{3}{5} + \frac{2}{15} =\) 6) \(\frac{8}{17} + \frac{1}{34} =\) 7) \(\frac{1}{4} + \frac{1}{6} =\) 8) \(\frac{5}{8} + \frac{1}{10} =\) 9) \(\frac{7}{9} + \frac{1}{6} =\) 10) \(\frac{2}{21} + \frac{3}{14} =\)
- Выполните сложение Вариант 4 1) \(\frac{1}{2} + \frac{3}{4} =\) 2) \(\frac{6}{7} + \frac{5}{14} =\) 3) \(\frac{2}{3} + \frac{7}{12} =\) 4) \(\frac{4}{5} + \frac{3}{20} =\) 5) \(\frac{4}{9} + \frac{7}{18} =\) 6) \(\frac{9}{10} + \frac{4}{15} =\) 7) \(\frac{5}{6} + \frac{3}{14} =\) 8) \(\frac{5}{12} + \frac{1}{18} =\) 9) \(\frac{1}{3} + \frac{3}{12} =\) 10) \(\frac{3}{4} + \frac{1}{6} =\)
- Выполните вычитание Вариант 3 1) \(\frac{2}{21} - \frac{1}{14} =\) 2) \(\frac{7}{9} - \frac{1}{6} =\) 3) \(\frac{5}{17} - \frac{11}{34} =\) 4) \(\frac{4}{5} - \frac{11}{15} =\) 5) \(\frac{3}{18} - \frac{4}{27} =\) 6) \(\frac{3}{8} - \frac{1}{12} =\) 7) \(\frac{11}{14} - \frac{1}{7} =\) 8) \(\frac{11}{63} - \frac{1}{9} =\) 9) \(\frac{12}{15} - \frac{2}{5} =\) 10) \(\frac{11}{27} - \frac{1}{9} =\)
- Выполните вычитание Вариант 4 1) \(\frac{4}{5} - \frac{6}{10} =\) 2) \(\frac{17}{4} - \frac{2}{51} =\) 3) \(\frac{5}{6} - \frac{4}{9} =\) 4) \(\frac{14}{15} - \frac{2}{3} =\) 5) \(\frac{4}{25} - \frac{6}{75} =\) 6) \(\frac{26}{45} - \frac{16}{30} =\) 7) \(\frac{13}{18} - \frac{5}{24} =\) 8) \(\frac{15}{27} - \frac{1}{9} =\) 9) \(\frac{13}{18} - \frac{5}{24} =\) 10) \(\frac{5}{13} - \frac{7}{26} =\)
