There are 300 poplar trees planted in the park, and the willow trees planted are 1/3 of the poplar trees. How many willow trees are there?
公园里栽杨树300棵，栽的柳树是杨树的(1/3)，柳树有多少棵？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">300 * (1/3)</gadget>
<output>100</output>

<result>100</result>