A rope is cut into two sections, the first section is (1/2) meter long, and the second section accounts for (2/3) of the total length, then, how much is the first section as the second section.
一根绳剪成两段，第一段长(1/2)米，第二段占全长的(2/3)，那么，第一段是第二段的多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">(1/3) / (2/3)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>