For a fraction, if the numerator is multiplied by 5, the numerator is 2 more than the denominator; if the numerator is multiplied by 3, the numerator is 16 less than the denominator, what is the fraction?
一个分数，如果分子乘5，分子比分母多2；如果分子乘3，分子比分母少16，这个分数是多少．
<gadget id="calculator">16 + 2</gadget>
<output>18</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<gadget id="calculator">5 * 9</gadget>
<output>45</output>

<gadget id="calculator">45 - 2</gadget>
<output>43</output>

<gadget id="calculator">9 / 43</gadget>
<output>9/43 = around 0.209302</output>

<result>9/43 = around 0.209302</result>