Make 13 meters of cloth into 4 curtains on average, how many meters of cloth is used for each curtain
把13米长的布平均做成4幅窗帘，每幅窗帘用布多少米
<gadget id="calculator">13 / 4</gadget>
<output>13/4 = around 3.25</output>

<result>13/4 = around 3.25</result>