It takes 9 minutes to saw a piece of wood into 3 sections. According to this calculation, how many minutes will it take to saw it into 8 sections?
一根木料锯成3段要用9分钟，照这样计算，锯成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>