Arrange the four numbers (13/20), 67%, 0.667, and 0.7 in ascending order, what is the first number?
把(13/20)、67%、0.667、0.7这四个数按从小到大的顺序排列，排在第一位的是多少．
<gadget id="calculator">13 / 20</gadget>
<output>13/20 = around 0.65</output>

<result>13/20 = around 0.65</result>