There are 200 students in the fifth grade of a certain elementary school, how many. How many students are there in the fourth grade? 200*(4/5).
某小学五年级200名学生，多少．四年级有学生多少名？200*(4/5)．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>