Xiaodong has collected 12 cards from "Water Margin", which is the number of cards collected by Xiaoliang (2/5), and the number of cards of Xiaoqiang is Xiaoliang's (4/5). How many cards does Xiaoqiang have?
小冬收集了《水浒传》卡片12张，是小亮收集卡片张数的(2/5)，小强的卡片张数是小亮的(4/5)，小强有多少张卡片？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">12 / (2/5)</gadget>
<output>30</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">30 * (4/5)</gadget>
<output>24</output>

<result>24</result>