If it takes (6/7) minutes to saw a steel pipe into two pieces, how many minutes will it take to saw it into five pieces?
一根钢管锯成两段需要(6/7)分钟，那么锯成5段需要多少分钟．
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">(6/7) / 1</gadget>
<output>6/7 = around 0.857143</output>

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

<gadget id="calculator">(6/7) * 4</gadget>
<output>24/7 = around 3.428571</output>

<result>24/7 = around 3.428571</result>