Jawapan

2016-03-07T18:03:23+08:00
1/3/8 - 1/1/2
=11/8 - 3/2
=11/8 - 4(3)/4(2)
=11/8 - 12/8
=(11-12)/8
=-1/8#
2016-03-10T15:34:34+08:00