There are two boxes of apples. If (3/10) kilograms are taken from the first box and put into the second box, the weight of the two boxes is equal. How much is the weight of the first box than the second box?
有两箱苹果，如果从第一箱中取出(3/10)千克放入第二箱，这时两箱苹果的重量相等，第一箱比第二箱重多少千克？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) + (3/10)</gadget>
<output>3/5 = around 0.6</output>

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