If the decimal point of a decimal is moved one place to the right, the new number obtained is 46.8 more than the original number. What is the original number?
将一个小数的小数点向右移动一位，得到的新数比原来多了46.8，原数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">46.8 / 9</gadget>
<output>5.2</output>

<result>5.2</result>