A set of school uniform is 140 yuan, and the price of trousers is 75% of that of the top. How much is the price of the coat?
一套校服140元，其中裤子的价格是上衣的75%．上衣的价格是多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">140 / (7/4)</gadget>
<output>80</output>

<result>80</result>