lowest common denominator of 4/5 and 7/15 would be 15 4/5=12/15
LCD means lowest (or least) common denominator, and that implies there must be at least two fractions involved for something to be common to both of them. There is, therefore, no sensible answer to this question.
The GCF is 1. The LCM is 10. The LCD is related to the LCM.
15
The LCD for the given three numbers is 60
LCD(4, 5) = 20.
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 common denominator of 5/8 and 3/4 is 32.The lowest common denominator (LCD) is 8.The highest common denominator (HCD) is 32.
The lowest common denominator of 5/42 and 7/30 is 210.
5 is a factor of 35, so the LCD is 35.
The lowest common denominator of 4, 5 and 6 is 60.
The LCD of 3, 5, and 10 is 30.
The LCD for 1/5 and 1/10 is 10.
The LCD is 600.
The lowest common denominator is also the only common denominator, 1. This is because 5 and 3 are prime numbers. The lowest common multiple is 15.
The LCD of 5/7 and 7/10 is 70.
The LCD of 5/8 and 7/12 is 24.