Lenovo Group produces 40,000 computers this year, which is 1/4 more than last year. Find the number of computers produced last year. What is the correct column formula?
联想集团今年生产电脑40000台，比去年多生产(1/4)，求去年生产的台数，正确的列式是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">40_000 / (5/4)</gadget>
<output>32_000</output>

<result>32_000</result>