It rains on 8 days in a city in April, cloudy days account for (1/3), and the rest are sunny days. What fraction of the total number of days in the whole month are sunny days?
某城市4月份8天下雨，阴天占(1/3)，其余的是晴天，晴天占全月总天数的几分之几？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">1 - (1/15) - (4/15)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>