Answer:
first find the LCM of the denominator, which in this case is 8
8 divided by 4 is 2 ,hence 2 by 11 equals 22
8 divided by 8 is 1, hence 1 by 3 equal 3
hence the numerator will be 22-3 which equals to 19
The numerator will be the LCM, which is 8