Class 1 of the sixth year has 21 boys and 23 girls. Now the class should be divided into two groups, A and B. It is known that the number of people in group A is 5/6 of the number of people in group B. How many people are there in group A?
六年1班有男生21人，女生23人．现在要把全班人数分成甲乙两组，已知甲组人数是乙组人数的(5/6)，甲组有多少人？
<gadget id="calculator">21 + 23</gadget>
<output>44</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">44 * (5/11)</gadget>
<output>20</output>

<result>20</result>