Question

помогите с примером пожалуйста ​

Answer 1

Ответ: 20

$\frac{(7 - 6.35) \div 6.5 + 9.9}{(1.2 \div 36 + 1.2 \div 0.25 - 1 \frac{5}{16}) \div \frac{169}{24} } = \\ = \frac{0.65 \div 6.5 + 9.9}{ (\frac{12}{10} \times \frac{1}{36} + \frac{12}{10} \times \frac{100}{25} - \frac{21}{16} ) \times \frac{24}{169} } = \\ = \frac{ \frac{65}{100} \times \frac{10}{65} + \frac{99}{10} }{( \frac{1}{30} + \frac{24}{5} - \frac{21}{16}) \times \frac{24}{169} } = \\ \frac{ \frac{1}{10} + \frac{99}{10} }{ \frac{8 + 1152 - 315}{240} \times \frac{24}{169} } = \\ = \frac{ \frac{100}{10} }{ \frac{845}{240} \times \frac{24}{169} } = \\ = \frac{10}{ \frac{5}{10} } = 10 \times \frac{10}{5} = 10 \times 2 = 20$