A rope is (1/2) meter long. After cutting (2/3) of it, how many meters will it be shorter than before?
一根绳长(1/2)米，剪去它的(2/3)后，比原来短了多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

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