The grain store shipped a batch of rice, sold 1/6 of this batch of rice on the first day, bought 1/4 of this batch of rice on the second day, and sold a total of 21,001 kilograms in two days. How many kilograms are left?
粮店运来一批大米，第一天卖了这批大米的(1/6)，第二天买了这批大米的(1/4)，两天共卖出21001千克，这批大米还剩多少千克？
<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">(1/6) + (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">21_001 / (5/12)</gadget>
<output>252_012/5 = around 50_402.4</output>

<gadget id="calculator">(252_012/5) - 21_001</gadget>
<output>147_007/5 = around 29_401.4</output>

<result>147_007/5 = around 29_401.4</result>