It is: 42
405?
1 All of these numbers are primes. * * * * * That is the HCF or GCF. The LCD is 42
It is 3 because 7 is a prime number and 6 can be divided into 3 by 2:)
LCD(7, 9, 2) = 126.
LCD(2, 3) = 6.
The least common denominator (LCD) is 1.
lcd(35, 60) = 420. 35 = 5 x 7 60 = 2^2 x 3 x 5 lcd = 2^2 x 3 x 5 x 7 = 420
24
21
Example: 1/30 and 1/42Factor them.2 x 3 x 5 = 302 x 3 x 7 = 42Combine the factors, eliminating duplicates.2 x 3 x 5 x 7 = 210, the LCD
Example: 1/30 and 1/42Factor them.2 x 3 x 5 = 302 x 3 x 7 = 42Combine the factors, eliminating duplicates.2 x 3 x 5 x 7 = 210, the LCD
Example: 1/30 and 1/42Factor them.2 x 3 x 5 = 302 x 3 x 7 = 42Combine the factors, eliminating duplicates.2 x 3 x 5 x 7 = 210, the LCD