Jawabanmu

2014-03-20T13:13:22+07:00
2014-03-20T13:16:22+07:00
7 1/4 - 4 1/2 + 0,5
= 29/4 - (9/2 + 5/10)
= 29/4 - (45/10 + 5/10)
= 29/4 - 50/10
= 29/4 - 5/1
= 29/4 - 20/4
= 9/4 atau 2 1/4 atau 2,25
semoga bermanfaat :)