Question

Qual o valor da expressão:1/5+ [2/3-(2/6-1/12)]+5/6

Answer 1

1/5+[2/3-(4/12-1/12)]+5/6

1/5+[2/3-3/12]+5/6

1/5+[8/12-3/12]+5/6

1/5+5/12+5/6

12/60 + 25/60 + 50/60

87/60

Answer 2

VAMOS FAZER. 1/5+[2/3-(2/6-1/12)]+5/6
                             1/5+[2/3-(3/12)]+5/6
                             1/5+[5/12]+5/6
                             1/5+5/12+5/6= 212/60=53/15.ok