There are 240 boxes of children's clothing in the warehouse, and 180 boxes are sold. How much is the rest of the original
仓库有一批童装共240箱，卖掉180箱．剩下的部分是原来的多少
<gadget id="calculator">240 - 180</gadget>
<output>60</output>

<gadget id="calculator">60 / 240</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>