There are 100 girls in the sixth grade of Huayang Primary School, and boys account for 5/9 of the total number of students in the whole grade. How many students are there in the whole grade?
华阳小学六年级有女生100人，男生占全年级总人数的(5/9)，全年级有学生多少人？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 - (5/9)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">100 / (4/9)</gadget>
<output>225</output>

<result>225</result>