An engineering team repaired a 3,500-meter expressway. In the first month, the full length (3/7) was repaired, and in the second month, it was repaired (4/5) in the first month. How many meters were repaired in the second month? ?
某工程队修一条3500米的高速公路，第一个月修了全长的(3/7)，第二个月修的是第一个月的(4/5)，第二个月修了多少米？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3_500 * (3/7) * (4/5)</gadget>
<output>1_200</output>

<result>1_200</result>