Xiao Ming did 15 math problems, got 3 wrong, and left 1 question blank, what percentage of the total number of correct ones?
小明做15道数学题，做错3道，1道空着没做，做对的占总数的几分之几？
<gadget id="calculator">15 - 3 - 1</gadget>
<output>11</output>

<gadget id="calculator">11 / 15</gadget>
<output>11/15 = around 0.733333</output>

<result>11/15 = around 0.733333</result>