- 3/5 + (4/5 + 8/15 - 1/6)^2/(13/3 - 11/4 - 1) + 8/3 - 2/3·(+ 18/5)=
=- 3/5 + (7/6)^2/(7/12) + 8/3 - 2/3·(+ 18/5)=
=- 3/5 + (7/6)^2/(7/12) + 8/3 - 12/5=
=- 3/5 + 49/36/(7/12) + 8/3 - 12/5=
=- 3/5 + 7/3 + 8/3 - 12/5=
=(- 3·3 + 7·5 + 8·5 - 12·3)/15=
=30/15 = 2