1 1\22×3 2\3-(2 5\6+3 5\6÷3 2\7)÷1 2\3 по действиям

1 1/22 * 3 2/3 - (2 5/6 + 3 5/6 : 3 2/7) : 1 2/3 = 1 13/30 1) 3 5/6 : 3 2/7 = 23/6 : 23/7 = 23/6 * 7/23 = 7/6 = 1 1/6 2) 2 5/6 + 1 1/6 = 4 3) 1 1/22 * 3 2/3 = 23/22 * 11/3 = 23/6 = 3 5/6 4) 4 : 1 2/3 = 4 : 5/3 = 4 * 3/5 = 12/5 = 2 2/5 5) 3 5/6 - 2 2/5 = 3 25/30 - 2 12/30 = 1 13/30