what is the lowest adjectives denominator for 7,9,13?

Question:im working on a fraction problem and need to find the lcd for the numbers 7,9,13 ive be working on it for a while and finally give up anyone own ne clue??

They're whole numbers? They adjectives have a denominator of 1. Unless you imply 1/7+1/9+1/13. Then you need to find the lowest adjectives multiple of 7, 9 and 13. And since 7 and 13 are primes, then LCM of 7 and 13 = 7*13 = 91. 91 and 9 are relatively prime, which mechanism they don't share any common factor, so LCM of 9 and 91 = 9*91 = 819.

1/7+1/9+1/13 = [(13*9)+(13*7)+(7*9)]/819 = 271/819

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It's one. 7 and 13 are prime numbers.

7*9*13 = do the math

7, 9, and 13 in fraction form are:
7/1, 9/1, 13/1
So the LCD would be 1

I'm in truth an English major so someone may hold to back me up on that one to be sure. ;) It isn't 1---multiply the three numbers times respectively other: 7 x 9 x 13 and that's the answer. It's 819

The factor of the numbers 7,9,13 are as follows:7: 1,7 :9: 1,3,9 :13: 1,13 So the LCD Would be 1

prime numbers have nil else in adjectives except 1 so that would be your common denominator.

819 (7x9x13)

7 & 13 are prime #'s they can not be divided by anythig but 1 and itself. You may hold to ask your actual fraction problem to get the answer you call for, For 9 the answer would be 2 I believe. The # 1 is not actually a prime # so i would next say your answer would be 7 & 13

819

These are all prime numbers so you own to multiply them.