63
20
The LCDis36.
12 is.
20 is.
The least common denominator for 4 5 and 11 is 1.
12 is.
20 is.
20
The LCDis36.
The least common denominator for 4 5 and 11 is 1.
The least common denominator is 340.
56
80
12
The LCD of 3/4 and 4/5 is 20.
The word "common" indicates that there will be at least two. You have one. Your answer will be some multiple of 4.
The common denominator is 28.