Question

[1+2.[1/4.(2/3-1/4.2/5)-2].2=

Answer 1

[1+2.[1/4.(2/3-2/20)-2].2=
[1+2.[1/4.(2/3-1/10)-2].2=
[1+2.[1/4.(20-3/30)-2].2=
[1+2.[1/4.17/30-2].2=
[1+2.17/120-2].2=
[1+34/120-2].2=
33/120.2= 66/120--> 11/20