Jawabanmu

2014-08-17T20:57:28+07:00
15/25 ÷ 12/18 = 15/25 x 18/12
                       = 9/10 = 0,9
2014-08-17T20:58:35+07:00
15/25 : 12/18 = 25/15 x 12/18 = 25/5 x 4/18 = 100/90 = 20/18 = 1 2/18