There are 150 roosters in the chicken farm, which is the number of hens (5/6). How many hens are there?
养鸡场有公鸡150只，是母鸡只数的(5/6)．母鸡有多少只？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">150 / (5/6)</gadget>
<output>180</output>

<result>180</result>