Divide a fraction by 2, 3, and 5, and the result is (2/3). What is the original fraction?
把一个分数用2、3、5各约分一次，得到的结果是(2/3)，原来的分数是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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