There are 390 villagers in Hedong Village, which is less than Hexi Village (1/14). How many people are there in Hexi Village?
河东村有村民390人，比河西村少了(1/14)，河西村有多少人？
<gadget id="calculator">1 / 14</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">1 - (1/14)</gadget>
<output>13/14 = around 0.928571</output>

<gadget id="calculator">390 / (13/14)</gadget>
<output>420</output>

<result>420</result>