The school shipped a batch of rice, last month I ate (1/6) of the total, and this month I ate (1/4) of the total. What fraction of the total amount of rice is left in this batch?
学校运来一批大米，上月吃了总数的(1/6)，这个月又吃了总数的(1/4)．这批大米还剩总数的几分之几？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/6) - (1/4)</gadget>
<output>7/12 = around 0.583333</output>

<result>7/12 = around 0.583333</result>