Ответ:
Для каждой группы приводим дроби к наименьшему общему знаменателю.
- НОК(2, 6, 3) = 6: 1/2 = 3/6; 1/6 = 1/6; 2/3 = 4/6.
- НОК(4, 7, 28) = 28: 1/4 = 7/28; 5/7 = 20/28; 9/28 = 9/28.
- НОК(5, 20, 10) = 20: 1/5 = 4/20; 11/20 = 11/20; 3/10 = 6/20.
- НОК(4, 8, 16) = 16: 3/4 = 12/16; 7/8 = 14/16; 3/16 = 3/16.
- НОК(3, 15, 5) = 15: 2/3 = 10/15; 2/15 = 2/15; 4/5 = 12/15.
- НОК(2, 9, 6) = 18: 1/2 = 9/18; 1/9 = 2/18; 5/6 = 15/18.
