[tex]\frac{3}{18} [/tex]
Simplified
[tex] \frac{1}{6} [/tex]
There are 6 numbers on a die. So the probability over all to get either of those 6 numbers is 1/6 if you roll just once. The only number that is odd and less than 3 is 1. 1 is one of those 6 numbers so the probability to get a number odd and less than three in 18 rolls is 3/18 which is also 1/6 if it needs to be simplified
