Помогите решить 1)5ц 7/12 + 1ц 4/8 2)6ц 22/5 - 1ц 1/10 3)4ц 5/7- 1ц 2/3

1) $5\frac{7}{12} + 1\frac{4}{8} = \frac{67}{12} + \frac{12}{8} = \frac{134}{24} + \frac{36}{24} = \frac{170}{24} = 7,083$ ц

НОЗ: 24.

2) $6\frac{22}{5} - 1\frac{1}{10} = \frac{52}{5} - \frac{11}{10} = \frac{104}{10} - \frac{11}{10} = \frac{93}{10} = 9,3$ ц

НОЗ: 10.

3) $4\frac{5}{7} - 1\frac{2}{3} = \frac{33}{7} - \frac{5}{3} = \frac{99}{21} - \frac{15}{21} = \frac{84}{21} = 4$ ц

НОЗ: 21.