A single number cannot have a lowest common denominator because "common" refers to multiples that two or more numbers have in common. You have only one number.
The lowest common denominator of any set of whole numbers is 1
The lowest common denominator of any set of whole numbers is 1
The LCD (Lowest Common Denominator) of 7 and 9 is 63.
The lowest common denominator of any set of whole numbers is 1
The lowest common denominator of any set of whole numbers is 1
The lowest common denominator of any set of whole numbers is 1
It is 42
21
21
7
The lowest common denominator of 5/42 and 7/30 is 210.