Fill in the blanks according to the law: (2/3), (4/5), (6/7), (8/9), (10/11), how much.
按规律填空：(2/3)、(4/5)、(6/7)、(8/9)、(10/11)、多少．
<gadget id="calculator">12 / 13</gadget>
<output>12/13 = around 0.923077</output>

<result>12/13 = around 0.923077</result>