Вопрос:

Найдите значение выражения.

Найдите значение выражения.
Фотография

Ответ ассистента

1. $\frac{3}{12} - \frac{1}{6} \cdot \frac{2}{3} = \frac{1}{4} - \frac{2}{18} = \frac{1}{4} - \frac{1}{9} = \frac{9}{36} - \frac{4}{36} = \frac{5}{36}$ 2. $\frac{5}{11} - \frac{6}{11} : \frac{1}{12} = \frac{5}{11} - \frac{6}{11} \cdot \frac{12}{1} = \frac{5}{11} - \frac{72}{11} = -\frac{67}{11} = -6\frac{1}{11}$ 3. $\frac{8}{11} + \frac{5}{8} \cdot \frac{2}{9} = \frac{8}{11} + \frac{10}{72} = \frac{8}{11} + \frac{5}{36} = \frac{288 + 55}{396} = \frac{343}{396}$ 4. $\frac{5}{12} - \frac{4}{10} \cdot \frac{2}{3} = \frac{5}{12} - \frac{8}{30} = \frac{5}{12} - \frac{4}{15} = \frac{25 - 16}{60} = \frac{9}{60} = \frac{3}{20}$ 5. $\frac{3}{10} + \frac{4}{15} : \frac{2}{9} = \frac{3}{10} + \frac{4}{15} \cdot \frac{9}{2} = \frac{3}{10} + \frac{36}{30} = \frac{3}{10} + \frac{6}{5} = \frac{3 + 12}{10} = \frac{15}{10} = 1,5$ 6. $\frac{3}{5} - \frac{6}{5} \cdot \frac{6}{11} = \frac{3}{5} - \frac{36}{55} = \frac{33 - 36}{55} = -\frac{3}{55}$ 7. $\frac{2}{5} + \frac{1}{10} : \frac{1}{12} = \frac{2}{5} + \frac{1}{10} \cdot 12 = \frac{2}{5} + \frac{12}{10} = \frac{4 + 12}{10} = \frac{16}{10} = 1,6$ 8. $\frac{5}{6} - \frac{4}{9} : \frac{2}{5} = \frac{5}{6} - \frac{4}{9} \cdot \frac{5}{2} = \frac{5}{6} - \frac{20}{18} = \frac{5}{6} - \frac{10}{9} = \frac{15 - 20}{18} = -\frac{5}{18}$ 9. $\frac{5}{8} + \frac{6}{10} : \frac{2}{9} = \frac{5}{8} + \frac{3}{5} \cdot \frac{9}{2} = \frac{5}{8} + \frac{27}{10} = \frac{25 + 108}{40} = \frac{133}{40} = 3,325$ 10. $\frac{4}{7} + \frac{3}{8} : \frac{10}{11} = \frac{4}{7} + \frac{3}{8} \cdot \frac{11}{10} = \frac{4}{7} + \frac{33}{80} = \frac{320 + 231}{560} = \frac{551}{560}$

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