Find the denominator's least common multiple which in this case is 18. So you are changing the denominators of both to 18 So 4/6 is changed to 12/18 (since you had to multiply 3 to 6 to get 18 u have to multiply 3 to 4 also) Do the same to the second fraction and u shall get 12/18 So the answer is they are equivalent.
