Вычислите (3-2 5/9):1/12= 2)(7/18+5/12-2/3)*0,9= 3)(1,35-4/15)*3/13+2 5/12= 4) 0,1:(2 1/15+1/3)=

(3 - 2 5/9) : 1/12 = (27/9 - 23/9) : 1/12 = 4/9 : 1/12 = 4/9 * 12/1 = 48/9 = 16/3 = 5 1/3;

(7/18 + 5/12 - 2/3) * 0,9 = (14/36 + 15/36 - 24/36) * 0,9 = 5/36 * 0,9 = 4,5/36 = 0,125;

(1,35 - 4/15) * 3/13 + 2 5/12 = (20,25/15 - 4/15) : 3/13 = 16,25/15 * 13/3 = 211,25/45 = 

= 42,25/9 = 4 6,25/9 или 4,694444444444444;

0,1 : (2 1/15 + 1/3) = 0,1 : (31/15 + 1/3) = 0,1 : (31/15 + 5/15) = 0,1 : 36/15 = 0,1 * 15/36 =

= 1,5/36 = 0,5/12 или  0,416666666666667.