Answer: No if you said that the ratio is the same like 1=1 but yes if you mean that the ratio is the same as before
Explanation:
If you said that the ratio must be the same than is a no cause since 21 and 35 is not equal with each other so if you add an same number up it remain the same
If you mean that the ratio is the same as if it was not added 5 to both side than is a yes, you add both side an equal number and it would stay the same