- в) $$5\frac{1}{2} - 2\frac{7}{12} - 2\frac{3}{10} = 5\frac{30}{60} - 2\frac{35}{60} - 2\frac{18}{60} = 4\frac{90}{60} - 2\frac{35}{60} - 2\frac{18}{60} = \frac{37}{60}$$
- г) $$4\frac{2}{3} + 2\frac{3}{4} - 1\frac{5}{12} = 4\frac{8}{12} + 2\frac{9}{12} - 1\frac{5}{12} = 6\frac{12}{12} = 6 + 1 = 7$$
Ответ: в) $$\frac{37}{60}$$; г) $$7$$