A machinery factory made a profit of 420,000 yuan in October, and donated part of it to the disaster area. The amount donated to the disaster area was 10% more than the rest. How much was donated to the disaster area?
某机械厂十月份盈利42万元，拿出一部分捐给灾区，捐给灾区的钱数比剩下的多10%，捐给灾区多少钱？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">1 + (1/10) + 1</gadget>
<output>21/10 = around 2.1</output>

<gadget id="calculator">(11/10) / (21/10)</gadget>
<output>11/21 = around 0.52381</output>

<gadget id="calculator">42 * (11/21)</gadget>
<output>22</output>

<result>22</result>