Divide a (13/20) meter long rope into 13 sections on average, how much of the total length does each section take
把一根长(13/20)米的绳子平均分成13段，每一段占全长的多少
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<result>1/13 = around 0.076923</result>