2 : 2 2/3 + 1 4/5 * 3 1/3 - 2 5/6 = 3 целых 11/12
1) 2 : 2 2/3 = 2 : 8/3 = 2 * 3/8 = 6/8 = 3/4
2) 1 4/5 * 3 1/3 = 9/5 * 10/3 = 90/15 = 6
3) 3/4 + 6 = 6 3/4
4) 6 3/4 - 2 5/6 = 6 9/12 - 2 10/12 = 5 21/12 - 2 10/12 = 3 11/12
Пояснения:
2 целых 2/3 = (2*3+2)/3 = 8/3
1 целая 4/5 = (1*5+4)/5 = 9/5
3 целых 1/3 = (3*3+1)/3 = 10/3
3/4 = 9/12 - доп.множ. 3
5/6 = 10/12 - доп.множ. 2