Wang Liang collected a total of 45 toy cars, among which toy trucks accounted for 2/5 of the total. How many toy trucks did Wang Liang collect in total?
王亮一共收藏了45辆玩具汽车，其中玩具卡车占总数的(2/5)，王亮一共收集了玩具卡车多少辆？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">45 * (2/5)</gadget>
<output>18</output>

<result>18</result>