A certain commercial station brought in a batch of brown sugar and sold 340 kilograms, which happened to sell (2/5) of this batch of brown sugar. How many kilograms is this batch of brown sugar?
某商站运进一批红糖，卖出340千克，正好卖出了这批红糖的(2/5)，这批红糖有多少千克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">340 / (2/5)</gadget>
<output>850</output>

<result>850</result>