The unit price of "Li Ning" brand shoes is 240 yuan after a 40% discount. What is the original price of "Li Ning" brand shoes?
"李宁"牌鞋子打六折后单价是240元，李宁"牌鞋子原价是多少元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">240 / (3/5)</gadget>
<output>400</output>

<result>400</result>