A livestock factory raises 200 cows and 320 horses, how much more horses than cows.
一个畜牧厂养牛200头，马320匹，马比牛多多少．
<gadget id="calculator">320 - 200</gadget>
<output>120</output>

<gadget id="calculator">120 / 200</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>