Xiaohua completed several "brain teasers". After proofreading, 12 questions were correct and 8 questions were wrong. What is the correct rate?
小华完成了几道"脑筋急转弯"，经过校对正确的有12题，错误的有8题，正确率达多少．
<gadget id="calculator">12 + 8</gadget>
<output>20</output>

<gadget id="calculator">12 / 20</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) * 1</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>