For a 1-meter-long rope, cut off all (1/3) for the first time, and (1/2) meter for the second time, how many meters are left
1米长的绳子，第一次剪去全部的(1/3)，第二次剪去(1/2)米，还剩下多少米
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">1 - (1/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>