The number of girls in Class A of the sixth grade is (10/9) times the number of boys. In the New Year's party, (2/5) of the girls and (1/3) of the boys participated in the performance, so how many people participated in the performance accounted for the whole class.
六年级甲班的女生人数是男生人数的(10/9)倍．新年联欢会中，(2/5)的女生和(1/3)的男生参加了演出，则参加演出的人数占全班人数的多少．
<gadget id="calculator">10 / 9</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(10/9) * (2/5)</gadget>
<output>4/9 = around 0.444444</output>

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

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

<gadget id="calculator">(4/9) + (1/3)</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 + (10/9)</gadget>
<output>19/9 = around 2.111111</output>

<gadget id="calculator">(7/9) / (19/9)</gadget>
<output>7/19 = around 0.368421</output>

<result>7/19 = around 0.368421</result>