when adding or subtracting fractions, the very first thing to do is find the LCD.
the LCD for this case is 30. you will have:
9 1/5 9 1(6)/30
+ 4 3/10 4 3(3)/30
6 5/6 6 5(5)/30
19 4/3
since 4/3 is an improper fraction that is equal to 1 1/3 then we'll have it expressed as 1 1/3. adding 19 to it you'll have the sum as:
19
+ 1 1/3
20 1/3
