After increasing 1 meter by 20%, then reducing it by (1/5) meter, what is the result in meters?
1米增加它的20%后，再减少(1/5)米，结果是多少米．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 * (6/5)</gadget>
<output>6/5 = around 1.2</output>

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

<gadget id="calculator">(6/5) - (1/5)</gadget>
<output>1</output>

<result>1</result>