There are 220 students in the fifth grade, and 15% more students in the sixth grade than in the fifth grade. How many students are there in the sixth grade?
五年级有学生220人，六年级比五年级多15%，六年级有学生多少人？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">220 * (23/20)</gadget>
<output>253</output>

<result>253</result>