jacket is 300 yuan, and the jacket is less than the trousers (2/3). So, how much is a set of clothes?
一件上衣300元，上衣比裤子少(2/3)．那么，一套衣服是多少钱？
<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>

<gadget id="calculator">900 + 300</gadget>
<output>1_200</output>

<result>1_200</result>