Jawabanmu

2014-09-11T22:37:56+07:00
2 1/2 +1 1/4 +2/3 = 5/2+5/4+2/3 = 30/12 +15/12+8/12 = 52/12 = 4 4/12 = 4 1/3 kg 
2014-09-11T22:40:28+07:00
2 1/2 + 1 1/4 + 2/3 = 2+1   6+3+8
                                           12
= 3 17     = 4 5/12
      12