Transfer (1/12) of the grain stored in warehouse A to warehouse B, then the tonnage of grain stored in the two warehouses is equal, so the original grain stored in warehouse B is the amount of warehouse A.
把甲仓存粮的(1/12)调入乙仓，则两个仓库存粮吨数相等，那么乙仓原来的存粮是甲仓的多少．
<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<gadget id="calculator">12 - 2</gadget>
<output>10</output>

<gadget id="calculator">10 / 12</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>