Question

Rolling a number less than five on a standard number cube

Answer 1

4/6
and when you simplify it, it is 2/3

Answer 2

There are only four numbers less than five on a standard number cube (they would be 1, 2, 3, and 4) so the probability of rolling a number less than five is 4/6. But if you want, you can simplify.
4/6=2/3