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

Вычислим значения выражений: 

1) 12 - 11 6/11 = 11 + 1 - 11 - 6/11  = 1 - 6/11 = 11/11 - 6/11 = (11 - 6)/11 = 5/11; 1

2) 6 3/13 - 6 8/13 = 6 + 3/13 - 6 - 8/13 = 3/13 - 8/13 = -5/13;

3) 13 4/9 - 2 8/9 = 13 + 4/9 - 2 - 8/9 = 11 - 4/9 = 10 + 5/9 = 10 5/9;

4) 10 7/16 - 4 12/16 = 10 + 7/16 - 4 - 12/16 = 6 + (7 - 12)/16 = 6 - 5/16 = 5 + 11/16 = 5 11/16;

4) 29 49/53 - 8 49/53 = 29 + 49/53 - 8 - 49/53 = 29 - 8 = 21.