rope is 6 meters long, what is its (2/3) in meters, and (2/3) meters account for ((())/(())) of the length of the rope.
一条绳子长6米，它的(2/3)是多少米，(2/3)米占这条绳子长的((())/(()))．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 * (2/3)</gadget>
<output>4</output>

<result>4</result>