After the downsizing of a certain organization, there are 75 staff members, which is 45 fewer than before. How much is the reduction? (Hint: think about who's who's what percentage is streamlined?)
某机关精简后有工作人员75人，比原来少45人，精简了百分之几？(提示：想想清楚精简百分之几是指谁是谁的百分之几？)
<gadget id="calculator">75 + 45</gadget>
<output>120</output>

<gadget id="calculator">45 / 120</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(3/8) * 1</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>