After the decimal point of number A is moved to the left by two places, the result is reduced by 9.9. If number A is the reciprocal of number B, what is number B?
甲数的小数点向左移动两位后，结果比原来减少9.9，如果甲数是乙数的倒数，乙数是多少．
<gadget id="calculator">100 / 99</gadget>
<output>100/99 = around 1.010101</output>

<gadget id="calculator">9.9 * (100/99)</gadget>
<output>10</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>