It takes 9 minutes to divide a uniform piece of wood into 3 sections, how many minutes will it take to divide it into 8 sections?
一根均匀的木头，据成3段需要9分钟，那么如果据成8段需要多少分钟？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

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

<gadget id="calculator">(9/2) * 7</gadget>
<output>63/2 = around 31.5</output>

<result>63/2 = around 31.5</result>