Jawabanmu

2014-09-02T19:10:20+07:00
+1/243 +1/729 + 1/2187 + 1/6561 <bisa ditulis 243^-1 dst>
1 5 1
2014-09-02T19:10:54+07:00
= 27/81 + 9/81 + 3/81 + 1/81 = 40/81
coba dihitung lagi dulu ya
1 5 1