The number of fourth grade students is the fifth grade (5/7), the fourth grade is also the third grade (5/7), the third grade has 180 students, how many fifth grade students?
四年级学生的人数是五年级的(5/7)，四年级的人数也是三年级的(5/7)，三年级有180人，五年级有多少人？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) / (5/7)</gadget>
<output>1</output>

<gadget id="calculator">180 * 1</gadget>
<output>180</output>

<result>180</result>