A steel pipe, if 40% of it is cut off, there are 2.4 meters left; if (1/3) of it is cut off, how many meters are left?
一根钢管，如果截去它的40%后，还剩2.4米；如果截去它的(1/3)，还剩多少米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2.4 / (3/5)</gadget>
<output>4</output>

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

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">4 * (2/3)</gadget>
<output>8/3 = around 2.666667</output>

<result>8/3 = around 2.666667</result>