a) |-7,6|+|-4,7 | = 7,6 + 4,7 = 12,3
б) |-3,84|-|1,97 | = 3,84 - 1,97 = 1,87
в) |-7,5|-|-4,6 | = 7,5 - 4,6 = 2,9
г) | 7,14|:|-2,1 | = 7,14 : 2,1 = 3,4
д) |-1 \frac{1}{7}|+|\frac{3}{14}| = 1 \frac{1}{7} + \frac{3}{14} = \frac{8}{7} + \frac{3}{14} = \frac{16}{14} + \frac{3}{14} = \frac{19}{14} = 1 \frac{5}{14}
e) |1 \frac{1}{5}|-|-\frac{5}{12}| = 1 \frac{1}{5} - \frac{5}{12} = \frac{6}{5} - \frac{5}{12} = \frac{72}{60} - \frac{25}{60} = \frac{47}{60}