Eva has a bag that contains strawberry chews, cherry chews, and watermelon chews. She performs an experiment. Eva randomly removes a chew from the bag, records the result, and returns the chew to the bag. Eva performs the experiment 42 times. The results are shown below:
A strawberry chew was selected 21 times.
A cherry chew was selected 11 times.
A watermelon chew was selected 10 times.
Based on these results, express the probability that the next chew Eva removes from the bag will be strawberry or cherry as a fraction in simplest form.
