There is a piece of floral cloth with a length of 3 meters, which can be used to make 5 pairs of children's trousers of the same size. Each pair of children's trousers just uses ((())/(())) of this piece of floral cloth.
有一块花布长3米，正好可以做5条同样大小的童裤，每条童裤正好用这块花布的((())/(()))．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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