Divide a fraction, use 2 for 2 times, use 3 for 1 time, get (2/3), what is the original fraction?
把一个分数约分，用2约了2次，用3约了1次，得(2/3)，原来这个分数是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>