In a knowledge contest, Xiao Liang answered 20 questions in total and got 3 wrong. What is his correct rate?
在某次知识竞赛中，小亮共抢答20道题，答错3道．他的正确率是多少？
<gadget id="calculator">20 - 3</gadget>
<output>17</output>

<gadget id="calculator">17 / 20</gadget>
<output>17/20 = around 0.85</output>

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

<gadget id="calculator">(17/20) * 1</gadget>
<output>17/20 = around 0.85</output>

<result>17/20 = around 0.85</result>