There are 120 poplar trees in the school, how many, how many willow trees? (Supplement a condition to turn it into a fraction multiplication and division problem, and answer it.)
学校有杨树120棵，多少，有柳树多少棵？(补充一个条件，变成分数乘除法应用题，并解答．)
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>