Xiao Ming did 40 oral math problems, and the correct rate was 95%. Later, he found that one question was wrong. What is the correct rate of Xiao Ming?
小明同学做了40道数学口算题，正确率是95%，后来又发现一道题错了，小明做题的正确率是百分之几？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">40 * (19/20)</gadget>
<output>38</output>

<gadget id="calculator">38 - 1</gadget>
<output>37</output>

<gadget id="calculator">37 / 40</gadget>
<output>37/40 = around 0.925</output>

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

<gadget id="calculator">(37/40) * 1</gadget>
<output>37/40 = around 0.925</output>

<result>37/40 = around 0.925</result>