Here are seven scores listed according to a certain rule: (1/2), (2/5), (3/10), (4/17), (5/26), a, (7/50) , according to the above rules a is how much.
下面是按某种规律列出的七个分数：(1/2)、(2/5)、(3/10)、(4/17)、(5/26)、a、(7/50)，根据上面的规律a是多少．
<gadget id="calculator">26 + 11</gadget>
<output>37</output>

<gadget id="calculator">6 / 37</gadget>
<output>6/37 = around 0.162162</output>

<result>6/37 = around 0.162162</result>