Jawabanmu

2014-09-04T15:31:47+07:00
2/3 + 5/9  = 18/27 + 15/27  = 33/27  --> 1 6/27  atau  1  2/9
2/3  + 2  1/2  + 3  1/4         = 2/3  + 5/2  + 13/4  cari kpk pemyebut
8/12 + 30/12 + 39/12 = 77/12 = 6    5/12
2014-09-04T15:46:55+07:00
2/3 +3 5/9 = 2/3 +32/9
=6/9 + 32/9
=38/9
=4 2/9