Jawabanmu

2014-01-27T20:49:06+07:00
A .9/10-4/5= 9/10 - 8/10 =1/10
b .4 3/4-2 2/5= 4 15/20 -2 8/20 =2 7/20
2014-01-27T20:49:27+07:00
1.     9/10-4/5= 9/10-8/10=1/10



2.      4 3/4-2 2/5= 4 15/20-2 8/20=2 7/20
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