Given a string of fractions (1/1), (1/2), (2/2), (1/3), (2/3), (3/3), (1/4), (2/ 4), (3/4), (4/4), ... what is the 107th fraction.
已知一串分数(1/1)、(1/2)、(2/2)、(1/3)、(2/3)、(3/3)、(1/4)、(2/4)、(3/4)、(4/4)，…第107个分数是多少．
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<result>2/15 = around 0.133333</result>