Question

[1,3 (5)-0,0 (2)+0,6]-1 7/5-1/5

Answer 1

1,3(5)=(135-13)/90=122/90
0,0(2)=2/90
0,6=6/10
1 7/5= 12/5

[1,3(5)-0,0(2)+0,6]-1 7/5-1/5 =
=(122/90-2/90+6/10)-12/5-1/5=
=120/90+3/5-13/5=
=4/3-10/5=
=4/3-2=
=(4-6)/3=-2/3=-0,(6)