There are 3200 chickens in the farm, and (3/8) of the total number are sold in the first week. How many chickens are left?
养殖场有鸡3200只，第一周卖出总数的(3/8)．还剩多少只鸡？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3_200 * (5/8)</gadget>
<output>2_000</output>

<result>2_000</result>