1 1/2 : 75 persen × 0.25 jadi pecahan biasa ya

1 1/2 : 75% x 0,25
= 3/2 : 75/100 x 25/100
= 3/2 : 3/4 x 1/4
= 3/2 x 4/3 x 1/4
= 1/2

11/2 : 75% x 0.25
11/2 : 75/100 x 25/100
2/11 x 75/100 x 25/100
3750/110000
375/11000
75/2200
15/440
3/88
maaf kalau salah