Ответ:
- \(\frac{3,6}{5,9-1,1}=\frac{3,6}{4,8}=0,75\).
- \(\frac{28}{17,5\cdot0,5}=\frac{28}{8,75}=3,2\).
- \(\frac{5,6\cdot0,7}{0,8}=\frac{3,92}{0,8}=4,9\).
- \(\frac{1}{5}+\frac{3}{20}=\frac{4}{20}+\frac{3}{20}=\frac{7}{20}=0,35\).
- \(\frac{3,4}{1-\frac{1}{18}}=3,4:\frac{17}{18}=3,4\cdot\frac{18}{17}=3,6\).
