Jawabanmu

2014-08-28T21:58:38+07:00
1. 45/10 x 16/5 = 72/5 atau 14 2/5
2. 20/100 x 48/10 = 48/50
3. 7/3 x 90/100 = 21/10
4. 7/3 x 9/2 = 21/2