Ava has apples and peaches in a ratio of 53:4. How many apples does she have if she has 8 peaches?

So the best way to do this In my personal opinion is to find how many apples per 1 peach you have so,

53 : 4 = 53/4 = 13.25 : 1

So you now know you have 13.25 apples for every 1 peach to now you can multiply 13.25 by how many peaches you have…

(13.25 : 1 ) x 8 = 106 : 8

Ava has 106 apples if she has 8 peaches.