A piece of wood 3 meters long is sawed into 5 small sections of the same length, each section is ((())/(())) meters long. If it takes 2 minutes to saw once, how many minutes will it take to complete the saw?
把一根3米长的木头锯成同样长的5小段，每段长((())/(()))米．如果锯一次需2分钟，锯完共需多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<result>8</result>