The precipitation in a certain area last year was 425 mm. Compared with the previous year (4/9), how many millimeters of precipitation did this area have in the previous year?
某地区去年的降水量是425mm．比前年减少(4/9)，这个地区前年的降水量是多少毫米？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 - (4/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">425 / (5/9)</gadget>
<output>765</output>

<result>765</result>