It takes 12 minutes to saw a piece of wood into 5 sections. If it is sawed into 8 sections, how many minutes will it take?
把一根木料锯成5段需要12分钟，如果锯成8段，需要多少分钟？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">12 / 4</gadget>
<output>3</output>

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

<gadget id="calculator">3 * 7</gadget>
<output>21</output>

<result>21</result>