It takes 6 minutes to saw a piece of wood into 4 sections, how many minutes will it take to saw it into 13 sections?
把一根木头锯成4段需要6分钟，如果要锯成13段，需要多少分？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">13 - 1</gadget>
<output>12</output>

<gadget id="calculator">2 * 12</gadget>
<output>24</output>

<result>24</result>