If the decimal point of a decimal is moved one bit to the right and one bit to the left, the difference between the two numbers obtained is 7.92, what is the original decimal?
一个小数的小数点向右移一位与向左移一位所得的两个数，其差为7.92，则原来的小数是多少．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 - (1/10)</gadget>
<output>99/10 = around 9.9</output>

<gadget id="calculator">7.92 / (99/10)</gadget>
<output>0.8</output>

<result>0.8</result>