It takes 45 minutes to saw a steel pipe into 3 sections, how many minutes will it take to saw it into 6 sections?
把一钢管锯成3段需45分钟，如果锯成6段需多少分钟．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">45 / 2</gadget>
<output>45/2 = around 22.5</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">(45/2) * 5</gadget>
<output>225/2 = around 112.5</output>

<result>225/2 = around 112.5</result>