Find the probability of the event. Express your answer as a simplified fraction. Picture of spin wheel with twelve divisions and numbered from 1 to 12. An arrow points toward 2. The colors and numbers of the sectors are as follows: yellow 1, red 2, 3 green, 4 blue, 5 red, 6 yellow, 7 blue, 8 red, 9 green, 10 yellow, 11 red, and 12 blue. The probability of spinning yellow or a number less then 5 is .