In Huangniwan Primary School, 2 classes of the sixth grade took the math semester exam. The average score of 39 students in class 1 was 75, and the 37 students in class 2 scored a total of 2851 points. What is the average math score of these two classes?
黄泥完小六年级2个班进行数学期未考试，六1班39人平均75分，六2班37人共得了2851分，这两个班数学平均成绩多少分？
<gadget id="calculator">75 * 39</gadget>
<output>2_925</output>

<gadget id="calculator">2_925 + 2_851</gadget>
<output>5_776</output>

<gadget id="calculator">39 + 37</gadget>
<output>76</output>

<gadget id="calculator">5_776 / 76</gadget>
<output>76</output>

<result>76</result>