Jawabanmu

2014-08-28T20:24:40+07:00
1/81+ 3 = 1/81 + 243/81 = 244/81 = 3 1/81
2014-08-28T20:27:01+07:00
1/81 + 3 X 81 / 81
= 1/81 + 243/81
= 244/81
= 3 1/81