2 2/3:2+(4/15+2/5):(3 1/3*3/5)
1) 4/15+2/5=4/15 + 6/15=2/3 2)3+1/3*3/5=1=10/3*3/5=2 3)2/3 : 2 = 1/3 4)2+2/3 : 2 = 4/3 4) 4/3 + 1/3 =5/3 = 1+2/3