The number of male workers in a workshop is equivalent to (1/5) of the total number and there are 20 more, and the number of female workers is equivalent to (1/4) of the male workers and there are 5 more. How many male workers are there? (column solution)
一个车间男工人数相当于总数的(1/5)还多20人，女工人相当于男工的(1/4)还多5人，男工有多少人？(列式解答)
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">20 * (1/4)</gadget>
<output>5</output>

<gadget id="calculator">20 + 5 + 5</gadget>
<output>30</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * (1/4)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/5) - (1/20)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">30 / (3/4)</gadget>
<output>40</output>

<gadget id="calculator">40 * (1/5)</gadget>
<output>8</output>

<gadget id="calculator">8 + 20</gadget>
<output>28</output>

<result>28</result>