It takes 8 minutes to saw a steel pipe into 5 sections, how many minutes will it take to saw it into 8 sections?
把一根钢管锯成5段要8分钟，如果锯成8段需多少分钟．
<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>