Xiaohua enters a manuscript, and there are 300 words left after entering (2/3). How many words are there in this manuscript?
小华录入一份稿件，录入了(2/3)后还剩300字，这份稿件共有多少字？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">300 / (1/3)</gadget>
<output>900</output>

<result>900</result>