Практикуемся 1) \(2 \div \frac{3}{5} + \frac{3}{5} : 2 + 1 \frac{1}{2} : 6 + 6: 1 \frac{1}{2}\)

1) \(2 \div \frac{3}{5} + \frac{3}{5} : 2 + 1 \frac{1}{2} : 6 + 6: 1 \frac{1}{2} = 2 \cdot \frac{5}{3} + \frac{3}{5} \cdot \frac{1}{2} + \frac{3}{2} \cdot \frac{1}{6} + 6 \cdot \frac{2}{3} = \frac{10}{3} + \frac{3}{10} + \frac{3}{12} + \frac{12}{3} = \frac{10}{3} + \frac{3}{10} + \frac{1}{4} + 4 = 3 \frac{1}{3} + \frac{3}{10} + \frac{1}{4} + 4 = \frac{10}{3} + \frac{3}{10} + \frac{1}{4} + 4 = \frac{200}{60} + \frac{18}{60} + \frac{15}{60} + \frac{240}{60} = \frac{473}{60} = 7 \frac{53}{60}\)