There are 45 students in Class 51, which is the total number of students in the fifth grade (9/53). How many students are there in the fifth grade? (solution by equation)
五1班有学生45人，是五年级总人数的(9/53)，五年级共有多少人？(用方程解)
<gadget id="calculator">9 / 53</gadget>
<output>9/53 = around 0.169811</output>

<gadget id="calculator">45 / (9/53)</gadget>
<output>265</output>

<result>265</result>