Question

{[1/3+(7/8 - 2/4 )] + 2/3}

Answer 1

{[1/3+(7/8-2/4)]+2/3}=
{[1/3+(7/8-4/8)]+2/3}=
{[1/3+3/8]+2/3}=
{[8/24+9/24]+16/24}=
{17/24+16/24}=
33/24 = (simplifica por 3)
11/8