Uncle Zhang’s experimental field was planted with ordinary rice last year, and the output was 1200 kg. After planting new varieties this year, the output has increased (2/5) compared to last year. How many kg is this year’s output?
张大伯的一块试验田去年种普通水稻，产量是1200千克，今年改种新品种后，产量比去年增产了(2/5)，今年的产量是多少千克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">1_200 * (7/5)</gadget>
<output>1_680</output>

<result>1_680</result>