suit costs 1600 yuan, and the unit price of the trousers bought separately is the unit price of the jacket (3/5). How much does it cost to buy the pants alone?
一套西装1600元，单独买裤子单价是上衣单价的(3/5)．单独买裤子要花多少钱？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">1_600 / (8/5)</gadget>
<output>1_000</output>

<gadget id="calculator">1_600 - 1_000</gadget>
<output>600</output>

<result>600</result>