A, C, and D are all correct answers, since you are taking away 4 in each of the answers. Hope this helped!
Answer:
your answer would be 20 because you would find what both can go into.
The answer is going to be A!!!
Well, the numerator is the number on top, so in the fraction 3/5, 3 is the numerator. To find the equation with a denominator of 30 that is equivalent, find what the difference is. 30/5 = 6. So now, multiply the numerator by 6. 6 * 3 = 18. The new fraction is 18/30. The numerator is 18. Hope this helps!