There are 180 students in our school. The fourth grade accounts for 1/6 of the whole school, and the fourth grade accounts for 5/4 of the sixth grade. How many students are there in the sixth grade?
我校一共有学生180人，四年级占全校人数的(1/6)，四年级人数是六年级的(5/4)，六年级有多少人？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(1/6) / (5/4)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">180 * (2/15)</gadget>
<output>24</output>

<result>24</result>