The following numbers are known: (1/2), (2/3), (3/4), (4/5)..., according to this rule, what is the 10th number.
已知下列各数：(1/2)，(2/3)，(3/4)，(4/5)…，按此规律第10个数是多少．
<gadget id="calculator">1 + 9</gadget>
<output>10</output>

<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<result>10/11 = around 0.909091</result>