There is a bag of rice, after 40% is used, 36 kilograms are reduced, how many kilograms are left?
有一袋大米，用去40%后，减少了36千克，还剩多少千克．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">36 / (2/5)</gadget>
<output>90</output>

<gadget id="calculator">90 - 36</gadget>
<output>54</output>

<result>54</result>