There is such a series of numbers: (1/2), (1/3), (2/3), (1/4), (2/4), (3/4), (1/5), (2 /5), (3/5), (4/5), ..., then what is the 407th score.
有这样一串数：(1/2)，(1/3)，(2/3)，(1/4)，(2/4)，(3/4)，(1/5)，(2/5)，(3/5)，(4/5)，…，则第407个分数是多少．
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<result>1/30 = around 0.033333</result>