There are 300 chicks in the farm, 60 less than the number of hens (3/5). How many hens are there in the farm? (hint: can be solved with equations)
饲养场养小鸡300只，比母鸡只数的(3/5)少60只，饲养场养的母鸡有多少只？(提示：可以用方程解)
<gadget id="calculator">300 + 60</gadget>
<output>360</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">360 * (5/3)</gadget>
<output>600</output>

<result>600</result>