The weather is divided into sunny days, rainy days and cloudy days. In July this year, cloudy days are less than sunny days (1/4), and rainy days are less than sunny days (1/6). How many days are sunny this month? (calculation)
天气分为晴天，雨天和阴天，今年七月份中，阴天比晴天少(1/4)，雨天比晴天少(1/6)，则这个月有多少天是晴天？(算式)
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 + (3/4) + (5/6)</gadget>
<output>31/12 = around 2.583333</output>

<gadget id="calculator">31 / (31/12)</gadget>
<output>12</output>

<result>12</result>