Objective
In this challenge, we practice calculating probability.
Task
In a certain city, the probability of a resident not reading the morning newspaper is , and the probability of a resident not reading the evening newspaper is . The probability they will read both newspapers is .
Find the probability that a resident reads a morning or evening newspaper.
Output Format
In the editor below, submit your answer as Plain Text in the form of an irreducible fraction , where and are both integers.
Your answer should resemble something like:
3/4
(This is NOT the answer, just a demonstration of the answer format.)