If the numerator of a fraction is reduced by 20% and the denominator is increased by 28%, how much is the new fraction reduced from the original fraction?
若一个分数的分子减少20%，并且分母增加28%，则新分数比原来的分数减少了多少．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

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

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