(9-0.6)÷(2.5+1.5×3)=8.4÷(2.5+4.5)=8.4÷7=1.2
=8.4/7=1.2
(9-0.6)/(2.5+1.5x3)=8.4/(2.5+4.5)=8.4/7=1.2
(7/6-0.5)÷(1/2+1/3×6/5)=(7/6-1/2)÷(1/2+2/5)=2/3÷9/10=20/27