A car factory produced 20,000 cars last year, of which small cars accounted for (1/8) and the rest were large cars. The planned production of large cars this year remains unchanged, and the number of small cars will be increased so that the output of small cars will account for (1/5) of the total output. , find out how many small cars will be produced this year (array solution)
某汽车厂去年产汽车20000辆，其中小型车占(1/8)，其余为大型车，今年计划大型车产量未变，增产小型车若干辆使小型车产量占总产量的(1/5)，求今年增产多少辆小型车(列式解答)
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(7/8) / (4/5)</gadget>
<output>35/32 = around 1.09375</output>

<gadget id="calculator">20_000 * (35/32)</gadget>
<output>21_875</output>

<gadget id="calculator">21_875 - 20_000</gadget>
<output>1_875</output>

<result>1_875</result>