There are 3,600 hens in the chicken farm, which are 1/8 more than roosters. How many roosters are there? (Solve equations.)
养鸡场有母鸡3600只，比公鸡多(1/8)，公鸡有多少只？(列方程求解．)
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 + (1/8)</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">3_600 / (9/8)</gadget>
<output>3_200</output>

<result>3_200</result>