are 12/20 and 22/30 equivalent fractions?

Answer 1

No, they didn't.

12 / 20 = 4 ∙ 3 / 4 ∙ 5 = 3 / 5

22 / 33 = 11 ∙ 2 / 11 ∙ 3 = 2 / 3