(3,6- 1 2-3): (4 1/15-2 7/9)*2,6 по действиям

3.6/10-1.2/3=3.3/5-5/3=18/5-5/3=54/15-25/15=29/1561/15-25/9=183/45-125/45=58/4558/45 х 2.3/5=58/45 х 13/5=754/22529/15:754/225=29/15 х 225/754=1/15 х 225/26=1 х 15/26=15/26

(3,6- 1 2-3):(4 1/15-2 7/9)*2,6 =-11,4/-0,2667*2,6=111,13612