There are 250 kilograms of rice, which is 25% more than flour. How many kilograms of flour are there?
有大米250千克，比面粉多25%，面粉有多少千克？
<gadget id="calculator">25 / 100</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">250 / (5/4)</gadget>
<output>200</output>

<result>200</result>