If the output of a factory in the first half of last year was 25% higher than that in the second half of the year, how much does the output in the second half of the year account for in the whole year?
某工厂去年上半年产量比下半年高25%，则下半年产量占全年的多少
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + 1 + (1/4)</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">1 / (9/4)</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>