The price of a pair of leather shoes was 300 yuan last year, but it has increased by (1/5) this year. How much is the price per pair this year?
一种皮鞋去年售价每双300元，今年涨了(1/5)．今年每双售价多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">300 * (6/5)</gadget>
<output>360</output>

<result>360</result>