A rope is cut every (2/7) meters, exactly 5 cuts are needed, what is the total length of the rope in meters?
一条绳子每(2/7)米截一段，刚好需要截5次，这条绳子全长多少米．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

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

<gadget id="calculator">(2/7) * 6</gadget>
<output>12/7 = around 1.714286</output>

<result>12/7 = around 1.714286</result>