A rope is 2 meters long, if 1/3 of the total length is used up, what fraction of the total length is left?
一根绳长2米，用去全长的(1/3)，还剩全长的几分之几？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>