Question

Calcule a expressao:
A) 2/3+(3/5-1/2) : (1+1/5)

Answer 1

2/3 + (3/5-1/2) : (1+1/5)=
2/3 + (6-5/10) : (5+1/5)=
2/3 + 1/10 :6/5 =
2/3 + 1/10 . 5/6=        simplificando 10 e 5 fica
2/3+1/2 . 1/6 =
2/3 + 1/12 =
8    +     1
----------------=9/12    simplificando 3/4
        12