-0.03×(-5/9)÷(1.53÷1.5-1.2)+1
-0.03×(-5/9)÷(1.53÷1.5-1.2)+1= 3/100*5/9:(-0,18)+1= 1/60*(-100)/18+1= -5/54+1=54/54-5/54=49/54