Cut a rope into 5 pieces on average, and the length of each piece is ((())/(())) of the length of the rope.
把一根绳平均截成5段，每段绳长是这根绳长的((())/(()))．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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