A total of 25,000 grass carp and carp are stocked in a fish pond. The ratio of carp to grass carp is 3:2. How many fewer grass carp are stocked than carp?
某鱼塘共放养草鱼、鲤鱼25000尾，鲤鱼与草鱼的数量比是3：2，草鱼比鲤鱼少放养多少尾？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">25_000 * (1/5)</gadget>
<output>5_000</output>

<result>5_000</result>