There are two classes A and B in the sixth grade. At the school sports meeting, a total of 38 people from Class A (1/2) and Class B (1/3) participated in the tug-of-war competition. A total of 37 people from class B (1/2) participated in the rope skipping competition. How many people are there in the sixth grade?
六年级甲、乙两个班，在校运动会上，甲班人数的(1/2)和乙班人数的(1/3)共38人参加拔河比赛，甲班人数的(1/3)和乙班人数的(1/2)共37人参加跳绳比赛．六年级共有多少人．
<gadget id="calculator">37 + 38</gadget>
<output>75</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/2) + (1/3)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">75 / (5/6)</gadget>
<output>90</output>

<result>90</result>