It takes Xiao Ming 12 minutes to saw a piece of wood into 4 sections, how many minutes will it take to saw it into 7 sections now?
小明把一根木头锯成4段需要12分钟，现在要把它锯成7段需多少分钟．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

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

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>