After a decimal is expanded 100 times, the resulting number is 29.7 times larger than the original number. What is the original number?
一个小数扩大100倍后，所得的数比原数大29.7．原数是多少？
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<gadget id="calculator">29.7 / 99</gadget>
<output>0.3</output>

<result>0.3</result>