(0.9-9/12):0.45+2 2/3

(9/10-9/12)=45/60-45/60=0
(0):0.45=0:0.45=0
0+2 2/3
jawaban: 2 2/3

(0.9 – 9/12 ) ÷ 0,45 + 2 2/3

= (9/10 – 9/12) ÷ 45/100 + 2 2/3

= (108-90/120=18/120) ÷ 45/100 + 8/3

= 18/120 × 100/45 + 8/3

= 1800/5400 + 8/3

= 18/54 + 8/3

= 54+432/54

= 486/54

= 81/9

= 9/1