An ecological poultry breeding base raises 5000 chickens, the number of geese is chicken (4/5), and ducks (5/8). How many ducks are raised in this breeding base?
某生态家禽饲养基地养鸡5000只，鹅的只数是鸡的(4/5)，又是鸭的(5/8)．这个饲养基地养鸭多少只？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(4/5) / (5/8)</gadget>
<output>32/25 = around 1.28</output>

<gadget id="calculator">5_000 * (32/25)</gadget>
<output>6_400</output>

<result>6_400</result>