LCD(4, 2, 9) = 36
LCD(3, 5, 4, 2) = 60
For 3/4 and 2/3 the LCD is 12.
Lcd of 5,4,2 is 20 because 5*4=20 and 2*10=20
2
2
lcd(6, 12, 16) = 48. 6 = 2 x 3 12 = 2^2 x 3 16 = 2^4 lcd = 2^4 x 3 = 48
The LCD of the given three numbers is 8
20
the divisor of 4 are 1,2, and 4. We don't worry about 1 since it is a divisor of all numbers. So not look at 2 and 4 and see if they are divisors of 12? they both are and 2 is smaller so 2 is the lcd of 4 and 12
15
12