Вопрос:

2) 4\frac{11}{18} + 8\frac{7}{12}; 2. Вычислите: 1) 1 - \frac{8}{19}; 2) 6 - \frac{9}{14}; 3) 7 - 1\frac{8}{9}; 4) 11 - 4\frac{3}{16}. 3. Найдите разность: 1) 8\frac{7}{8} - 5\frac{3}{4}; 2) 7\frac{7}{15} - 4\frac{5}{18}; 3) 16\frac{11}{18} - 8\frac{8}{27}; 4) 8\frac{17}{28} - 7\frac{23}{42}. . Выполните вычитание: 1) 6\frac{1}{14} - \frac{1}{7}; 2) 8\frac{9}{40} - 6\frac{13}{50}; 3) 5\frac{5}{6} - 2\frac{6}{7}; 4) 9\frac{7}{34} - 1\frac{29}{102}; 5) 8\frac{3}{8} - 5\frac{5}{6}; 6) 7\frac{13}{36} - 3\frac{2}{5}. Решите уравнение: 1) 8\frac{5}{7} - x = 4\frac{9}{14}; 2) (x+7\frac{5}{8}) - 4\frac{13}{24} = 5\frac{1}{16};

Ответ:

  • 2) $$4\frac{11}{18} + 8\frac{7}{12} = 4\frac{22}{36} + 8\frac{21}{36} = 12\frac{43}{36} = 13\frac{7}{36}$$
2. Вычислите:
  • 1) $$1 - \frac{8}{19} = \frac{19}{19} - \frac{8}{19} = \frac{11}{19}$$
  • 2) $$6 - \frac{9}{14} = 5\frac{14}{14} - \frac{9}{14} = 5\frac{5}{14}$$
  • 3) $$7 - 1\frac{8}{9} = 6\frac{9}{9} - 1\frac{8}{9} = 5\frac{1}{9}$$
  • 4) $$11 - 4\frac{3}{16} = 10\frac{16}{16} - 4\frac{3}{16} = 6\frac{13}{16}$$
3. Найдите разность:
  • 1) $$8\frac{7}{8} - 5\frac{3}{4} = 8\frac{7}{8} - 5\frac{6}{8} = 3\frac{1}{8}$$
  • 2) $$7\frac{7}{15} - 4\frac{5}{18} = 7\frac{42}{90} - 4\frac{25}{90} = 3\frac{17}{90}$$
  • 3) $$16\frac{11}{18} - 8\frac{8}{27} = 16\frac{33}{54} - 8\frac{16}{54} = 8\frac{17}{54}$$
  • 4) $$8\frac{17}{28} - 7\frac{23}{42} = 8\frac{51}{84} - 7\frac{46}{84} = 1\frac{5}{84}$$
Выполните вычитание:
  • 1) $$6\frac{1}{14} - \frac{1}{7} = 6\frac{1}{14} - \frac{2}{14} = 5\frac{15}{14} - \frac{2}{14} = 5\frac{13}{14}$$
  • 2) $$8\frac{9}{40} - 6\frac{13}{50} = 8\frac{45}{200} - 6\frac{52}{200} = 7\frac{245}{200} - 6\frac{52}{200} = 1\frac{193}{200}$$
  • 3) $$5\frac{5}{6} - 2\frac{6}{7} = 5\frac{35}{42} - 2\frac{36}{42} = 4\frac{77}{42} - 2\frac{36}{42} = 2\frac{41}{42}$$
  • 4) $$9\frac{7}{34} - 1\frac{29}{102} = 9\frac{21}{102} - 1\frac{29}{102} = 8\frac{123}{102} - 1\frac{29}{102} = 7\frac{94}{102} = 7\frac{47}{51}$$
  • 5) $$8\frac{3}{8} - 5\frac{5}{6} = 8\frac{9}{24} - 5\frac{20}{24} = 7\frac{33}{24} - 5\frac{20}{24} = 2\frac{13}{24}$$
  • 6) $$7\frac{13}{36} - 3\frac{2}{5} = 7\frac{65}{180} - 3\frac{72}{180} = 6\frac{245}{180} - 3\frac{72}{180} = 3\frac{173}{180}$$
Решите уравнение:
  • 1) $$8\frac{5}{7} - x = 4\frac{9}{14}$$ $$x = 8\frac{5}{7} - 4\frac{9}{14}$$ $$x = 8\frac{10}{14} - 4\frac{9}{14}$$ $$x = 4\frac{1}{14}$$ Ответ: $$x = 4\frac{1}{14}$$
  • 2) $$(x+7\frac{5}{8}) - 4\frac{13}{24} = 5\frac{1}{16}$$ $$x + 7\frac{5}{8} = 5\frac{1}{16} + 4\frac{13}{24}$$ $$x + 7\frac{5}{8} = 5\frac{3}{48} + 4\frac{26}{48}$$ $$x + 7\frac{5}{8} = 9\frac{29}{48}$$ $$x = 9\frac{29}{48} - 7\frac{5}{8}$$ $$x = 9\frac{29}{48} - 7\frac{30}{48}$$ $$x = 8\frac{77}{48} - 7\frac{30}{48}$$ $$x = 1\frac{47}{48}$$ Ответ: $$x = 1\frac{47}{48}$$
Смотреть решения всех заданий с листа
Подать жалобу Правообладателю