There are two granaries, the grain stored in granary A (1/5) is equal to the grain stored in granary B (3/10), and granary A stores 600,000 tons more grain than granary B, so how many tons of granary does B granary store?
两个粮仓，甲粮仓存粮的(1/5)相当于乙粮仓存粮的(3/10)，甲粮仓比乙粮仓多存粮60万吨，那么，乙粮仓存粮多少万吨．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/10) / (1/5)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) - 1</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">60 / (1/2)</gadget>
<output>120</output>

<result>120</result>