If it takes 8 minutes to saw a piece of wood into 5 sections, how many minutes will it take to saw it into 8 sections?
一根木料锯成5段用8分钟，锯成8段要用多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">2 * 7</gadget>
<output>14</output>

<result>14</result>