What is the number of days in the first quarter of 2010 as a percentage of the whole year?
2010年的第一季度的天数占全年的多少．
<gadget id="calculator">31 + 28 + 31</gadget>
<output>90</output>

<gadget id="calculator">90 / 365</gadget>
<output>18/73 = around 0.246575</output>

<result>18/73 = around 0.246575</result>