The LCD (Least common denominators) is 24
lcm(6, 12, 8) = 24.
LCD(12, 8) = 24.
LCD(8, 12) = 24.
840
264
The LCD for 8 and 10 is 40. To find it, list the multiples of both numbers. The first multiple that they have in common is the LCD.
120
24
56 is the lcd of 8 and 7. You can get this by multiplying 8x7. 8 and 7 have no common factors; that is why you multiply the two numbers to get the lcd.
LCD(8, 12) = 24
LCD of 16 and 12 is 2 ( 2 x 8 = 16 and 2 x 6 = 12)