It took 3 minutes to saw a piece of wood into 3 sections. How many minutes will it take to saw the log into 5 pieces?
把一根木料锯成3段用了3分钟．如果把这根木料锯成5段要多少分钟．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">(3/2) * 4</gadget>
<output>6</output>

<result>6</result>