A certain village planted 1600 square meters of watermelon this year, which is more (3/8) than last year. How many square meters were planted last year?
某村今年种西瓜1600平方米，比去年多种(3/8)，去年种多少平方米．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 + (3/8)</gadget>
<output>11/8 = around 1.375</output>

<gadget id="calculator">1_600 / (11/8)</gadget>
<output>12_800/11 = around 1_163.636364</output>

<result>12_800/11 = around 1_163.636364</result>