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Verified answer
(1,2 : 80%) x 8/9= (12/10 : 80/100) x 8/9
= (12/10 x 100/80) x 8/9
= 30/20 x 8/9
= 60/45
= 1 15/45
= 1 (15:15)/(45:15)
= 1 1/3 ... (A)