A number is composed of 8 1s and 8 (1/9), what is the reciprocal of this number?
一个数是由8个1和8个(1/9)组成的，这个数的倒数是多少．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">8 + (8/9)</gadget>
<output>80/9 = around 8.888889</output>

<gadget id="calculator">1 / (80/9)</gadget>
<output>9/80 = around 0.1125</output>

<result>9/80 = around 0.1125</result>