The bumper car project in the amusement park originally charged 5 yuan for every 10 minutes of play. The National Day holiday discount is reduced by (1/5), so that every 10 minutes of playing bumper cars, you can pay a lot less than before.
游乐园的碰碰车项目，原来每玩10分钟收5元．国庆假期实行优惠，降低了(1/5)，这样每玩10分钟碰碰车，比原来可以少付多少元．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">5 * (1/5)</gadget>
<output>1</output>

<result>1</result>