25,2 : 3 1/2 + (6 - 4 1/3) х 0,6 = 8 1/5.1) 6 - 4 1/3 = 18/3 - 13/3 = 5/3 = 1 2/3 ;2) 25,2 : 3 1/2 = 252/10 : 7/2 = 252/10 * 2/7 = 36/5 = 7 1/5 ;3) 1 2/3 * 0,6 = 5/3 * 6/10 = 1 ;4) 7 1/5 + 1 = 8 1/5. Ответ: 8 1/5.(7 - 1 5/12) : 6,7 + (5,75 - 3 1/6) : 15,5 = 1 1/4.1) 7 - 1 5/12 = 84/12 - 17/12 = 67/12 = 5 7/12 ;2) 5,75 - 3 1/6 = 575/100 - 19/6 = 23/4 - 19/6 = 31/12 = 2 7/12 ;3) 5 7/12 : 6,7 = 67/12 : 67/10 = 67/12 * 10/67 = 5/6 ;4) 2 7/12 : 15,5 = 31/12 : 155/10 = 31/12 * 5/31 = 5/12 ;5) 5/6 + 5/12 = 15/12 = 5/4 = 1 1/4.Ответ: 1 1/4.