2 : 2 2/3 + 1 4/5 × 3 1/3 - 2 5/6

1) 2:2 2/3= 2: 8/3 = 2* 3/8 = 1* 3/4= 3/42) 1 4/5 * 3 1/3 = 9/5 * 10/3 = 3/1* 2/1= 63) 3/4+ 6 = 6 3/44) 6 3/4-2 5/6 = 6 9/12 - 2 10/12 = 5 21/12 - 2 10/12 = 3 11/12