1.5:3=10:65:10=3:66:3=10:56:10=3:53:5=6:103:6=5:1010:5=6:310:6=5:32.1/3:8=1/2:121/3:1/2=8:1212:8=1/2:1/312:1/2=8:1/38:1/3=12:1/28:12=1/3:1/21/2:1/3=12:81/2:12=1/3:8
3:5＝6:10 12:3＝8:2
