It is: 35,190 which is also their LCM
The greatest common denominator is infinite. The least common denominator is 45.
The least common multiple is 1440
If I wanted to be nasty about it, I would say 1, because the least common denominator of 45/1 and 75/1 is 1. The least common denominator of two fractions is the least common multiple of their denominators. I presume you are asking for the least common multiple of 45 and 75, which is 225.
45
45
The Least Common Multiple (LCM) of 45 and 34 is 1,530.
360
45
It is: 45
LCD(30, 45) = 90
It is 45 which is also their LCM