Вопрос:

Выполни вычитание дробей: 1) 12 11/14 - 3 2/7 =

Фотография

Ответ ассистента

1) $12\frac{11}{14} - 3\frac{2}{7} = 12\frac{11}{14} - 3\frac{4}{14} = 9\frac{7}{14} = 9\frac{1}{2}$ 2) $4\frac{5}{7} - 1\frac{2}{3} = 4\frac{15}{21} - 1\frac{14}{21} = 3\frac{1}{21}$ 3) $1\frac{17}{100} - \frac{9}{10} = 1\frac{17}{100} - \frac{90}{100} = \frac{117}{100} - \frac{90}{100} = \frac{27}{100}$ 4) $3\frac{7}{16} - \frac{9}{24} = 3\frac{21}{48} - \frac{18}{48} = 3\frac{3}{48} = 3\frac{1}{16}$ 5) $10\frac{3}{21} - \frac{3}{14} = 10\frac{6}{42} - \frac{9}{42} = 9\frac{48}{42} - \frac{9}{42} = 9\frac{39}{42} = 9\frac{13}{14}$ 6) $\frac{7}{25} - \frac{11}{50} = \frac{14}{50} - \frac{11}{50} = \frac{3}{50}$ 7) $1\frac{1}{14} - \frac{1}{12} = 1\frac{6}{84} - \frac{7}{84} = \frac{90}{84} - \frac{7}{84} = \frac{83}{84}$ 8) $14\frac{2}{3} - 11\frac{7}{9} = 14\frac{6}{9} - 11\frac{7}{9} = 13\frac{15}{9} - 11\frac{7}{9} = 2\frac{8}{9}$ 9) $5\frac{3}{5} - \frac{5}{13} = 5\frac{39}{65} - \frac{25}{65} = 5\frac{14}{65}$ 10) $12\frac{1}{45} - 8\frac{2}{27} = 12\frac{3}{135} - 8\frac{10}{135} = 11\frac{138}{135} - 8\frac{10}{135} = 3\frac{128}{135}$ 11) $9\frac{1}{4} - 2\frac{7}{25} = 9\frac{25}{100} - 2\frac{28}{100} = 8\frac{125}{100} - 2\frac{28}{100} = 6\frac{97}{100}$ 12) $7\frac{3}{22} - \frac{5}{77} = 7\frac{21}{154} - \frac{10}{154} = 7\frac{11}{154} = 7\frac{1}{14}$ 13) $12\frac{7}{12} - \frac{1}{18} = 12\frac{21}{36} - \frac{2}{36} = 12\frac{19}{36}$ 14) $5\frac{1}{6} - \frac{1}{25} = 5\frac{25}{150} - \frac{6}{150} = 5\frac{19}{150}$ 15) $9\frac{17}{60} - \frac{5}{42} = 9\frac{119}{420} - \frac{50}{420} = 9\frac{69}{420} = 9\frac{23}{140}$ 16) $5\frac{5}{8} - \frac{4}{7} = 5\frac{35}{56} - \frac{32}{56} = 5\frac{3}{56}$ 17) $16\frac{5}{16} - 8\frac{1}{4} = 16\frac{5}{16} - 8\frac{4}{16} = 8\frac{1}{16}$

Другие решения

Что ещё задавали пользователи