In September 2014, there were 20 sunny days in a certain city, less rainy days than sunny days (4/5), and more cloudy days than rainy days (1/2). Based on the above information, please ask two questions and answer them ．
2014年9月，某市晴天有20天，雨天比晴天的天数少(4/5)，阴天比雨天的天数多(1/2)，根据以上信息，请你提出两个问题，并解答．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">20 * (1/5) * (3/2)</gadget>
<output>6</output>

<result>6</result>