Put four cards marked 0, 5, 6, and 7 in your pocket, and take two randomly. The probability that the sum of the numbers on the two cards is not less than 11 is ((())/(())) ．
把分别标有0、5、6、7的四张卡片放在口袋里，任意取两张，两张卡片上数字之和不小于11的可能性是((())/(()))．
<gadget id="calculator">0 + 6</gadget>
<output>6</output>

<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>