A professional cattle breeder raises 60 beef cattle and 80 dairy cows. How much less beef cattle are raised than dairy cows?
一个养牛专业户，养肉牛60头，养奶牛80头，养的肉牛比奶牛少百分之几？
<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">20 / 80</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>