In the school dance team, the number of girls accounted for the total number (1/3), and later 6 girls joined, and the number of girls accounted for the total number of dance teams (4/9). How many girls are there in the dance team now?
学校舞蹈队原来女生人数占总人数的(1/3)，后来又有6名女生加入，这时女生人数占舞蹈队总人数的(4/9)．现在舞蹈队有女生多少人？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 - (4/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(4/9) / (5/9)</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/3) / (2/3)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(4/5) - (1/2)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">6 / (3/10)</gadget>
<output>20</output>

<gadget id="calculator">20 * (4/5)</gadget>
<output>16</output>

<result>16</result>