1/2:1/3=(1/2)*6:(1/3)*6=3:20.6:0.2=0.6*5:0.2*5=3:13/4:1/4=(3/4)*4:(1/4)*4=3:1
1/2:1/3=6:4请采纳!
1)1/2:1/3=3/6:2/6=3:2=6:42)0.6:0.1=3:1=12/4:4/4=3/4:1/4
