A rope is cut off (2/3) and there is (2/3) meters left, what is the original length of the rope
一根绳子剪去它的(2/3)后还剩(2/3)米，这根绳子原长多少米
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(2/3) / (1/3)</gadget>
<output>2</output>

<result>2</result>