Sum of  

12/15

and

15/25

in Simplest Form

Given:   + , which equals   +   (both fractions simplified)
Since the denominators are common (the same), we can add the numerators:
+ = =  is in Simplest Form since the Greatest Common Factor of 5 and 7 equals 1, GCF(5, 7) = 1
Therefore, the Sum of  

12/15

and

15/25

is equal to

7/5

in Simplest Form:  

12/15

+

15/25

=

7/5

Note: is an improper fraction, and as a mixed number,   = 1