Решите пожалуйста 2и3 задание
2. (3 1/14 - 2 5/7) * (7 - 6 3/5) = 1) 3 1/14 - 2 5/7 = 3 1/14 - 2 10/14 = 2 15/14 - 2 10/14 = 5/14 2) 7 - 6 3/5 = 6 5/5 - 6 3/5 = 2/5 3) 5/14 * 2/5 = 1/7 3. 1854/3852 = 927/1926 = 309/642 = 103/214