Answer :

6 1/4 = z  + 1 5/8
6 1/4 - 1 5/8 = z + 1 5/8 - 1 5/8 Isolate variable
6 2/8 - 1 5/8 = z    Least common denominator
4 5/8 = z Simplify



Answer:4 5/8 = z Simplify