The numbers 1 through 25 are written in red marker on slips of paper while the numbers 26 through 50 are written with blue marker on slips of paper. All of the papers are put into a bag and shuffled. One card is randomly selected.
a) Find the probability of selecting a number greater than 46 or selecting a number written in red. Writing your answer as a fraction and completely simplify.
b)Find the probability of selecting a number written in blue or selecting a number tat is multiple of 10. Write your answer as a fraction and completely simplify.