There are 108 boys and 102 girls in the fifth grade of Hongxing Primary School. The number of students in the fifth grade is that of the sixth grade (7/9). How many students are there in the sixth grade?
红星小学五年级有男生108人，女生102人．五年级的学生人数是六年级的(7/9)，六年级有学生多少人？
<gadget id="calculator">108 + 102</gadget>
<output>210</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">210 / (7/9)</gadget>
<output>270</output>

<result>270</result>