A tape recorder is 630 yuan after the price reduction (1/10). What is the original price of this tape recorder?
一种录音机，降价(1/10)后是630元，这种录音机原价是多少？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">630 / (9/10)</gadget>
<output>700</output>

<result>700</result>