There are 35 trains arriving on time at a railway station on October 3, and 5 trains are delayed. What is the punctuality rate of trains at this station on this day?
某火车站10月3日这一天正点到站的火车有35列，另外有5列火车误点．这一天该车站火车的正点率是多少．
<gadget id="calculator">35 + 5</gadget>
<output>40</output>

<gadget id="calculator">35 / 40</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(7/8) * 1</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>