行驶一段路程,甲用了8小时,乙用了10小时,甲、乙的速度比是 .
7÷9== ÷ 15=31÷ .
:20==3: =0.75= %
0.125== :16=5÷ .
= :24=0.5= ÷8=.
6÷ == %== : .