A set of clothes, the top is 150 yuan more expensive than the trousers, and the price of the trousers is (1/3) of the top. How much are the pants?
一套衣服，上衣比裤子贵150元，裤子的价钱是上衣的(1/3)．裤子多少元？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">150 / (2/3)</gadget>
<output>225</output>

<gadget id="calculator">225 - 150</gadget>
<output>75</output>

<result>75</result>