In a competition, 85% of the people won the prize, how many did not win the prize.
在一次比赛中，有85%的人获奖，没有获奖的是多少．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>

<result>3/20 = around 0.15</result>