Jawapan

2016-02-25T18:22:49+08:00
2 7/8 ÷1/4
= 2×8+7/8 ÷1/4
= 23/8÷1/4
= 23/8×4/1
=92/8
=11.5
2016-02-25T18:38:16+08:00