Sum of  

5/9

and

10/18

in Simplest Form

Given:   + , which equals   +   (second fraction simplified)
Since the denominators are common (the same), we can add the numerators:
+ = =  is in Simplest Form since the Greatest Common Factor of 9 and 10 equals 1, GCF(9, 10) = 1
Therefore, the Sum of  

5/9

and

10/18

is equal to

10/9

in Simplest Form:  

5/9

+

10/18

=

10/9

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