There are 100 poplars and 125 willows in the park, how much less poplars are there than willows
公园里有杨树100棵，柳树125棵，杨树比柳树少多少
<gadget id="calculator">125 - 100</gadget>
<output>25</output>

<gadget id="calculator">25 / 125</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>