Subtract (1/2) of it from 4000, then subtract the remaining (1/3), then subtract the remaining (1/4), ... finally subtract the remaining (1/100), and finally How much is left.
从4000减去它的(1/2)，再减去剩下的(1/3)，再减去剩下的(1/4)，…最后减去剩下的(1/100)，最后剩多少．
<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">4_000 * (1/100)</gadget>
<output>40</output>

<result>40</result>