A bag of rice (1/3) is 12 kilograms less than its 40%, how much does the bag of rice weigh in kilograms?
一袋米的(1/3)比它的40%少12千克，这袋米重多少千克．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) - (1/3)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">12 / (1/15)</gadget>
<output>180</output>

<result>180</result>