Transfer (1/5) of the grain from warehouse A to warehouse B, the grain stored in the two warehouses is equal, the original warehouse B is the amount of grain stored in warehouse A
把把甲仓粮食的(1/5)调入乙仓，两仓的存粮相等，原来乙仓是甲仓存粮的多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5) - (1/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>