Lele did 50 math problems, 1 was missed and 2 were wrong. What is his correct rate for these questions? (Reserve integers before the percent sign)
乐乐做50道口算题，1道漏做，2道做错．他做这些题的正确率为多少？(百分号前保留整数)
<gadget id="calculator">50 - 1 - 2</gadget>
<output>47</output>

<gadget id="calculator">47 / 50</gadget>
<output>47/50 = around 0.94</output>

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

<gadget id="calculator">(47/50) * 1</gadget>
<output>47/50 = around 0.94</output>

<result>47/50 = around 0.94</result>