Jawabanmu

2014-04-04T20:48:15+07:00
78%...........................................................................
2014-04-04T21:41:56+07:00
55/100 X  100/23 = 2,391304347826087
                         = 2,4
55 per 100: 23 per 100= 55 per 100 X 100 per 23. Lalu disederhanakan