If the decimal point of a decimal is removed, the resulting number is 50.4 greater than the original number. What is the original number?
把一个小数的小数点去掉，所得的数比原来的数大50.4，原来的数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">50.4 * (1/9)</gadget>
<output>5.6</output>

<result>5.6</result>