hasil dari 1.2 : 80% × 8/9

1,2 = 12/10
80% = 80/100
12/10 : 80/100 × 8/9
12/10 : 80/100 =
12/10 × 100/80 = 120/800 × 8/9 =
120 × 8 = 960
800× 9 = 7200
960/7200 : 10 = 96/720 : 2 = 48/360 : 2 = 24/180 : 2 = 12/90 : 2 = 6/45

Jawaba akhir : 6/45