In order to support the disaster area, a certain school launched a love donation activity. The third grade donated 1,800 yuan, and the sixth grade donated more (1/5) than the third grade. How much is the sixth grade donation?
为了支援灾区，某校开展了献爱心捐款活动，三年级捐款1800元，六年级的捐款比三年级多(1/5)，六年级捐款多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1_800 * (6/5)</gadget>
<output>2_160</output>

<result>2_160</result>