The numerator of a fraction is 16 smaller than the denominator, and the fraction is (5/9). What is the original fraction?
一个分数的分子比分母小16，约分后是(5/9)，原分数是多少．
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(5/9) * 16</gadget>
<output>80/9 = around 8.888889</output>

<gadget id="calculator">1 - (5/9)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(80/9) / (4/9)</gadget>
<output>20</output>

<gadget id="calculator">20 + 16</gadget>
<output>36</output>

<gadget id="calculator">(80/9) / (4/9) / 36</gadget>
<output>5/9 = around 0.555556</output>

<result>5/9 = around 0.555556</result>