The length of a rope is equal to its own length (1/3) plus 10 meters. How long is the rope in meters?
一根绳子的长度等于它本身长度的(1/3)加上10米，这绳子长多少米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">10 / (2/3)</gadget>
<output>15</output>

<result>15</result>