There are 360 students in the sixth grade of a certain school, and the number of boys is 20 more than the total number (4/9). How many girls are there in the sixth grade?
某校六年级共有360名学生，其中男生人数比总人数的(4/9)还多20人，六年级有女生多少人？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">360 * (4/9)</gadget>
<output>160</output>

<gadget id="calculator">160 + 20</gadget>
<output>180</output>

<gadget id="calculator">360 - 180</gadget>
<output>180</output>

<result>180</result>