There are 36 poplar trees in the campus, the number of cypress trees is 3/4 of that of poplar trees, and the number of pine trees is 2/3 of that of cypress trees. How many pine trees are there on campus?
校园里有杨树36棵，柏树的棵数是杨树的(3/4)，松树的棵数是柏树的(2/3)．校园里有多少棵松树？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">36 * (3/4) * (2/3)</gadget>
<output>18</output>

<result>18</result>