Answer:
rolling a number less than 4=
1,2,3 are less than 4 and a die is 6 sided so that will be 3/6 which in lowest terms is 1/2
1/2 as a percentage is 1/2*100=50%
rolling an odd number=
on a 6 sided die there are 3 odd numbers which are 1,3 and 5=
3/6 which in lowest terms is also 1/2
so 1/2*100=50%
I hope I was able to help