2/3 : х = 3 3/5
2/3 : х = 18/5
х = 2/3 : 18/5
х = 2/3 * 5/18
х = 10/54
х = 5/27
Проверка:
2/3 : 5/27 = 2/3 * 27/5 = (2*9)/(1*5) = 18/5 = 3 целых 3/5
2/3 : х = 3 3/5
2/3 : х = 18/5
х = 2/3 : 18/5
х = 2/3 * 5/18
х = 10/54
х = 5/27
Проверка:
2/3 : 5/27 = 2/3 * 27/5 = (2*9)/(1*5) = 18/5 = 3 целых 3/5