There are 24 members in the Little Red Riding Hood Dance Team, of which the first graders account for 1/4 of the total number, and the second graders account for 1/6 of the total number. How many people are there in the two grades?
小红帽舞蹈队一共有24人，其中一年级人数占总人数的(1/4)，二年级人数占总人数的(1/6)．两个年级共有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/4) + (1/6)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">24 * (5/12)</gadget>
<output>10</output>

<result>10</result>