Вычислите 12-11 6/11; 16 3/13-6 8/13; 13 4/9 -2 8/9; 10 7/16-4 12/16; 29 49/53-8 49/53

12 - 11 6/11=11 11/11 - 11 6/11 = 5/11;
16 3/13 - 6 8/13 = 211/13 - 86/13 = 125/13 = 9 8/13;
13 4/9 - 2 8/9 = 121/9 - 26/9 = 95/9 = 10 5/9;
10 7/16 - 4 12/16 = 167/16 - 76/16 = 91/16 = 5 11/16;
29 49/53 - 8 49/53 = 21.