你好:5*6=3*105:3=10:6 5:10=3:66:3=10:5 6:10=3:53:6=5:10 3:5=6:1010:6=5:3 10:5=6:31/3*12=8*1/21/3:8=1/2 :12 1/3:1/2=8:1212:8=1/2:1/3 12:1/2=8:1/38:1/3=12:1/2 8:12=1/3:1/21/2:1/3=12:8 1/2:12=1/3:8