Jawapan

2016-03-12T21:42:20+08:00
(40 * (12.5+100)/100) * (10+100)/100 =
(40 * 12.5/100) * 110/100 =
500/100 * 110/100=
5 * 110/100 =
550/100 =
11/2 (Improper)
5 1/2 (Mixed)