If a piece of wood is sawed into 7 sections on average, what is the time required to saw the next section in the total time?
把一根木条平均锯成7段，那么锯下一段所需的时间占总时间的多少．
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>