If 16 and 19 are denominators, their LCD is 304.
If that's 1/6 and 1/9, the LCD is 18.
Chat with our AI personalities
If those numbers are both denominators, the LCD is 304.
If that's 1/6 and 1/9, the LCD is 18.
LCD(17, 19) = 323
912
The common denominator is usually the Lowest (or Least) Common Multiple of the numbers involved. Where two numbers have no common factors then the LCM is simply the product of those numbers. As 19 is a prime number and has no factors in common with 18 then the common denominator is 18 x 19 = 342.
You need at least two denominators to find something in common between them.
The Least Common Multiple (LCM) of 79 and 16 is 1,264.