There are 60 poplars in the campus, the willows are poplars (9/10), the pagodas are poplars (2/3), how many pagodas are there?
校园里有杨树60棵，柳树是杨树的(9/10)，槐树是杨树的(2/3)，槐树有多少棵？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>