Выполнить действия А) (5 1/14 - 1 9/14) - (2 11/14+5/14=?
1)5 1/14 - 1 9/14 = 71/14 - 23/14 =48/14 = 24/7 = 3 3/7 2)2 11/14 + 5/14 = 39/14 + 5/14 = 44/14 = 22/7 = 3 1/7 3)3 3/7 - 3 1/7 = 24/7 - 22/7 = 2/7 ответ: 2/7