32:8/9=288:8 (前后都同时乘以9)=36:1 (前后项同时除以8)
同时
32:8/9=4:1/9=36:1
32 :(8/9)=(32/8) :(8/9×8)=4 :(1/9)=36 :1或者,32 :(8/9)=32×(9/8)=4×(9/1)=36 :1