One rope is (2/3) meters long and (1/2) meters less than the other, what is the length of the other rope in meters?
一根绳子长(2/3)米，比另一根少(1/2)米，另一根绳子长多少米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(2/3) + (1/2)</gadget>
<output>7/6 = around 1.166667</output>

<result>7/6 = around 1.166667</result>