Im pretty sure LCD means lowest common denominator but i do not know
0.5714
2
Composite numbers.
This does not have an answer as it is asked. The key word is common. In order for a denominator to be common, you need 2 or more numbers to get something that is common to all of them.
a common denominator is a number that 2 numbers can be divided by evenly, 8 and 12 are both divisible by 4 and 2 and 1, so those are their common denominators. Normally you would need 2 numbers to get a common denominator, but because 19 is a prime number, (which means it can only be divided by 1 and itself 19) then no matter what other number is paired with it, there will only be 1 common denominator and that is 1
The lowest common denominator, or LCD of 5 and 15 is 15 because that is the smallest number that both numbers divide evenly into.
The least common multiple, or LCM, is the smallest number that a given set of numbers can be divided into evenly.
The greatest common factor, or GCF, is the largest positive integer that will divide evenly with no remainder into all the members of a given set of numbers. The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder. Factors go into numbers, numbers go into multiples.
7 is a prime number and is also too small to have any numbers evenly divided into it.
0.5714
15
184.
2
Composite numbers.
Probably the most common use is in adding fractions with different denominators. The least common multiple of the denominators is the least common denominator. Each fraction can be converted to one with the common denominator, and then you can add the fractions by adding their numerators.
An infinite number of of multiples of 24 can be divided by 24 evenly.
This does not have an answer as it is asked. The key word is common. In order for a denominator to be common, you need 2 or more numbers to get something that is common to all of them.