Answer:
Yes.
Explanation:
You can always tell if fractions are equivalent by division.
Can 12 be divided by 4?
12 ÷ 4 = 3
So far, they are equivalent.
Can 21 be divided by 7?
21 ÷ 7 = 3
Therefore, this makes the fraction equivalent because 4 can go into 12 equally and 7 can go into 21 equally.