There are 500 sheep on the farm, and the number of cows is more than the number of sheep (1/4). How many cows are there?
农场有羊500头，牛比羊的头数多(1/4)，牛有多少头？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">500 * (5/4)</gadget>
<output>625</output>

<result>625</result>