The common multiples of 9, 15, and 20 are an infinite set of multiples of their least common multiple, which is 180. so the common multiples of 9, 15, and 20 are 180, 360, 540, 720, 900, 1080, 1260, 1440, 1620, 1800, and so on.
Multiples of 3 include 3, 6, 9, 12, 15, and so on. To be common, they need to be compared to another set of multiples.
The common multiples of 9 and 11 are 99, 198, 297 and so on.
5: 5, 10, 15 9: 9, 18, 27 If you are looking for the lowest common multiple between 5 and 9 it would be 45. By the way multiples are just counting by the number itself. e.g. 5, 10, 15, 20, 25, 30, 35 (just count by fives or if the number was anything else count by that number)
There are an infinite number of multiples of 3. Five examples may include 3, 6, 9, 12, and 15.
The first 5 multiples of 9 are 9, 18, 27, 36, and 45. For them to be common, they need to be compared to another set of multiples.
All multiples of 90.
The Least Common Multiple of 9 and 15 is 45.
The lowest common multiple of 15, 9 and 3 is 45 but the individual multiples of 15, 9 and 3 can go on for evermore
The biggest common divisor of 9 and 15 is 3. To find the least common multiples of 9 an 15 you should multiply these numbers and divide the result by their biggest common divisor. 9x15/3=45
3
The LCM of 6, 9, and 15 is 90.
It is: 360
To find common multiples you need the multiples of at least 2 numbers for example: To find multiples of 15 you have to do this: 15 x 1 = 15 15 x 2 = 30 15 x 3 = 45 15 x 4 = 60 15 x 5 = 75 The first five multiples of 15 are 15, 30, 45, 60, 75 Now find the multiples of another number like lets say 9 9 x 1 = 9 9 x 2 = 18 9 x 3 = 27 9 x 4 = 36 9 x 5 = 45 The first five multiples of 9 are 9, 18, 27, 36, 45 Now compare the results of the two numbers 15 and 9 and you can see they have a common multiple of 45. Normally you want to continue finding multiples for each number until you have at least 2 common multiples.
3- 3, 6, 9, 12, 15, 18 5- 5, 15, 20, 25, 30 answer 15
The multiples of 3 are: 3, 6, 9, 12, 15, 18 etc ...The multiples of 5 are: 5, 10, 15, 20, etc ...The multiples of 15 are: 15, 30, 45, etc ...The lowest common multiple of 3, 5, and 15 is 15, so the LCM = 15
The multiples of 4 are 4, 8, 12, 16, 20, 24, and so on. The multiples of 9 are 9, 18, 27, 36, 45, 54, and so on. The multiples of 15 are 15, 30, 45, 60, 75, 90, and so on.
Multiples of 3 include 3, 6, 9, 12, 15 and so on. For them to be common, they need to be compared to another set of multiples.