Least common multiple is like 10 and 20 where they can both be divided by 10, and 5 but the least common multiple is 5. Whereas least common denominator is like 4/8, 8 is a denominator but not the LEAST the least would be 1/2.
16.15 because 33,60-1.30 is 32.30. 32.30 divided by 2 is 16.15