Question 676112
First, we need to find the least common denominator. The LCD is 99. 

To get the first fraction to a denominator of 99, we need to multiply it by 11. Thus, the first fractions is: 33/99 

The second needs to be multiplied by 9. Second fraction is: 18/99 

So, the answer is: 33/99 - 18/99 or simply, 15/99. 

15/99 cannot be reduced, thus 15/99 is your answer.