(9/8-25×3/100)÷9/16=(9/8-3/4)×16/9=9/8×16/9-3/4×16/9=2-4/3=2/3
(9/8-25×3/100)÷9/16=[9/8-25×3×2/(25×8)]×16/9=(9/8-6/8)×16/9=3/8×(8×2)/(3×3)=2/3
2/3
请采纳谢谢