Question

Помогите пожалуйста ​

Answer 1

$\frac{ \frac{1}{4} + \frac{1}{5} + \frac{1}{2} }{ \frac{1}{2} - \frac{1}{4} - \frac{1}{5} } = \frac{ \frac{5}{20} + \frac{4}{20} + \frac{10}{20} }{ \frac{10}{20} - \frac{5}{20} - \frac{4}{20} } = \frac{ \frac{5 + 4 + 10}{20} }{ \frac{10 - 5 - 4}{20} } = \frac{ \frac{19}{20} }{ \frac{1}{20} } = 20 \times \frac{19}{20} = 19$

$\frac{ \frac{2}{3} + \frac{3}{4} - \frac{1}{6} }{ \frac{7}{8} - \frac{2}{3} - \frac{1}{12} } = \frac{ \frac{8}{12} + \frac{9}{12} - \frac{2}{12} }{ \frac{21}{24} - \frac{16}{24} - \frac{2}{24} } = \frac{ \frac{8 + 9 - 2}{12} }{ \frac{21 - 16 - 2}{24} } = \frac{ \frac{15}{12} }{ \frac{3}{24} } = \frac{24 \times \frac{15}{12} }{3} = \frac{30}{3} = 10$

$\frac{ \frac{1}{2} - \frac{1}{4} - \frac{1}{6} }{ \frac{2}{3} - \frac{5}{9} - \frac{1}{18} } =\frac{ \frac{6}{12} - \frac{3}{12} - \frac{2}{12} }{ \frac{12}{18} - \frac{10}{18} - \frac{1}{18} } = \frac{ \frac{6 - 3 - 2}{12} }{ \frac{12 - 10 - 1}{18} } = \frac{ \frac{1}{12} }{ \frac{1}{18} } = \frac{18}{12} = \frac{3}{2} = 1.5$