2/3 and 5/9The LCD is 9.
LCD(3, 5, 4, 2) = 60
The least common denominator (LCD) of 3 and 9 is the smallest multiple that both numbers share. In this case, the LCD of 3 and 9 is the smallest number that is divisible by both 3 and 9, which is 9. This is because 9 is the smallest multiple of 3 and 9 that they both have in common, making it the least common denominator for these two numbers.
In adding dissimilar fractions first you have to find the LCD! -> LCD means Least Common Denominator. *For example 2/3 3 6 9 12 + 3/4 4 8 12 the LCD is 12 put 12 under the - divide 12 to denominator and write the answer in left of given question
The least common denominator of 9 and 15 (if they are denominators) is the least common multiple of those numbers. We denote this the LCD. One way to find that is write the prime factorization of the two numbers. 9 = 3^2 15 = 3 x 5 Take 3^2 x 5 = 9 x 5 or 45 is the LCM of 9 and 15. This is the product of the primes with the largest exponents. So the LCD or least common denominator is the LCM of 9 and 15 and this is 45.
18
LCD(9, 3) = 9
If that's 9/10 and 2/3, the LCD is 30.
the LCD of 2, 9 and 5 = 90
LCD(4, 2, 9) = 36
LCD(2, 9, 11) = 198.
LCD(7, 9, 2) = 126.
36
The smallest multiple 3 and 9 have in common is 9. 2/3 becomes 6/9 and 5/9 does not change
9 multiplied by 14 is 126. So believe it or not the LCD of 2/9 and 3/14 is 126.
9
lcd(22, 12, 16, 9) = 1584 22 = 2 x 11 12 = 2^2 x 3 16 = 2^4 9 = 3^2 lcd = 2^4 x 3^2 x 11 = 1584