Divide a fraction by 2 first, then by 3, and then by 6. The final result is (2/3), so what is this fraction?
把一个分数先用2约分一次，再用3约分一次，然后用6约分一次，得到的最后结果是(2/3)，那么原来这个分数是什么？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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