A fraction can be divided into (3/7) by adding 3 to its denominator. Its denominator minus 2 can be divided into (2/3), what is the fraction.
一个分数，它的分母加上3可约分成(3/7)．它的分母减去2可以约分成(2/3)，这个分数是多少．
<gadget id="calculator">3 * 11</gadget>
<output>33</output>

<gadget id="calculator">33 + 9</gadget>
<output>42</output>

<gadget id="calculator">42 / 7</gadget>
<output>6</output>

<gadget id="calculator">6 / 11</gadget>
<output>6/11 = around 0.545455</output>

<result>6/11 = around 0.545455</result>