Answer:
>> 
Step-by-step explanation:
1) Add the whole numbers first.

2) Find the Least Common Denominator (LCD) of
. In other words, find the Least Common Multiple (LCM) of
.
Method 1: By Listing Multiples
1. List the multiples of each number.
Multiples of 6 : 6, 12, 18, ...
Multiples of 9 : 9, 18, ...
2. Find the smallest number that is shared by all rows above. This is the LCM.
LCM = 18
3. Make the denominators the same as the LCD.

4. Simplify. Denominators are now the same.

5. Join the denominators.

6. Simplify.

7. Convert
to mixed fraction.

8. Simplify.

Decimal Form: 6.277778
Cheers.