3/4 = 12/167/16 = 7/165/8 = 10/16
The LCD of any two (or more) of positive integers is 1
84
LCD(6, 7) = 42
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.
840
The LCD of 5/8 and 7/12 is 24.
LCD(12, 8) = 24.
LCD(15, 7, 8) = 840.
The LCD is 56. The two have no common factors, so the LCD is their product, 7 x 8 =56
LCD is 24
It is done by: 7*8 = 56
The LCD (Least common denominators) is 24
3/4 = 12/167/16 = 7/165/8 = 10/16
3/4 = 12/167/16 = 7/165/8 = 10/16
lcm(6, 12, 8) = 24.
The expression is: 6/9 + 7/12 Note that 6/9 is evaluated to 2/3. Then we have: 2/3 + 7/12 Since the LCD is 12, multiply the top and bottom by 4 for 2/3 to get: 2/3 * 4/4 + 7/12 = 8/12 + 7/12 Finally... 8/12 + 7/12 = (8 + 7)/12 = 15 / 12 = 1 3/12 = 1 ¼