20
20 is the lowest common denominator for 4 and 10.
4
There is an infinite number of common denominators for these two fractions. The lowest common denominator is 45.
The lowest common denominator of 4/25 and 3/50 is 50.
The LCD for 3/4 and 4/7 is 28.
12
The LCM is 52
The lowest common denominator is 12. The lowest common factor is 1.
16
1.5
8 is.
3/4 = 9/12 so LCD is 12.