Ответ Автор - Powerofknowledge78 1) 4,62 : 1.4 = 3.3 3.3 - 4.1 = -0.82) 4/7 : 5/21 = 12/5 12/5 + 3/5 = 15/5 = 33) 13 * 6 = 78 78 - 26 = 52