In an exam, Xiao Ming needed to calculate the value of 37+31xa, but he calculated it as 37+31+a. Fortunately, he still got the correct result. Then a=how much.
一次考试中，小明需要计算37+31xa的值，结果他计算成了37+31+a．幸运的是，他仍然得到了正确的结果．则a=多少．
<gadget id="calculator">31 / 30</gadget>
<output>31/30 = around 1.033333</output>

<result>31/30 = around 1.033333</result>