A factory completed 75% of the plan in the first half of the month, and 1/2 of the plan in the second half of the month. How much more was actually completed this month than planned?
某厂上半月完成计划的75%，下半月完成计划的(1/2)，这个月实际比计划多完成多少
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(3/4) + (1/2)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) - 1</gadget>
<output>1/4 = around 0.25</output>

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