18 teams participated in the competition, and finally 6 teams entered the final. What percentage of all teams participated in the finals?
18支球队参加比赛，最后有6支队进入决赛．进入决赛的队占所有参赛队的几分之几？
<gadget id="calculator">6 / 18</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>