There are 720 students in a certain school, and girls account for (5/9). How many girls are there?
某学校有学生720人，女生占(5/9)．有女生多少人？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">720 * (5/9)</gadget>
<output>400</output>

<result>400</result>