There is a batch of fruits. The mass of apples is 2500 kg, the pears are 1/2 of apples, and the peaches are 2/5 of pears. What is the mass of peaches in kilograms?
有一批水果，苹果的质量是2500千克，梨是苹果的(1/2)，桃是梨的(2/5)，桃的质量是多少千克？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">2_500 * (1/2) * (2/5)</gadget>
<output>500</output>

<result>500</result>