Answer:
The answer would be "Some number divided by 3"
Explanation:
y = some number.
3 = 3
When an equation is shown in a fraction and you're using any terms that may be used to represent "some number," such as y, x, etc; it usually means to divide the two numbers in the fraction.
Sorry if that didn't make sense, I'm only in 7th grade and I'm very bad at explaining haha