Add the HCF of 18 and 27 to the LCM of 12 and 8

The highest common factor (HCF) of 18 and 27 is 9.

The least common multiple (LCM) of 12 and 8 is 24.

Adding the HCF of 18 and 27 (9) to the LCM of 12 and 8 (24) gives us:

9 + 24 = 33

Therefore, the result is 33.