(1/2), (2/5), (3/10), (4/17)..., what is the 10th number?
(1/2)、(2/5)、(3/10)、(4/17)…，第10个数是多少．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">100 + 1</gadget>
<output>101</output>

<gadget id="calculator">10 / 101</gadget>
<output>10/101 = around 0.09901</output>

<result>10/101 = around 0.09901</result>