I really need help!
2007-11-19 10:14:20 · 15 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
84,36,30,30
go to wikipedia.com you'll see
2007-11-19 10:19:16 · answer #1 · answered by imthatgirl 3 · 0⤊ 0⤋
Here is an easy way to determine LCM
Factor each term completely:
6 = 2 * 3
14 = 2 * 7
Now we need to find a set of numbers that includes all the factors of each number (that is, any factors that are common can be reduced to a single factor... just be sure to keep multiples!):
2 * 3 * 7 (this includes 2*3 and 2*7)
2*3*7 = 42, our LCM!
~~~~~~~~~~~
9 = 3*3
12 = 2*2*3
LCM = 2*2*3*3 = 36 (notice we need 2 2's and 2 3's here!)
~~~~~~~~~~~
6 = 2*3
15 = 3*5
LCM = 2*3*5 = 30
~~~~~~~~~~~~
3 = 3
5 = 5
6 = 2*3
LCM = 2*3*5 = 30
Hope this helps! :)
2007-11-19 10:34:25 · answer #2 · answered by disposable_hero_too 6 · 0⤊ 0⤋
ignore the offensive comments, or just reverse them.
you need some help here. a simple method is to write each number in terms of its prime factors. then list the highest powers of the prime factors from both numbers, multiply together and there is your answer. e.g.
6 = 3*2, 14 = 2*7, lcm = 2*3*7 = 42.
9 = 3*3, 12 = 2*2*3 lcm = 2*2*3*3 = 36
3 =3, 5 =5, 6 = 2*3, lcm = 2*3*5 = 30.
I will let you work out 6 *15 so that you can check you understand it.
2007-11-19 10:32:10 · answer #3 · answered by graham e 2 · 0⤊ 0⤋
LCMs of
6 & 14 = 42
9 & 12 = 36
6 & 15 = 30
3, 5 & 6 = 30
2007-11-19 11:28:04 · answer #4 · answered by Joymash 6 · 0⤊ 0⤋
6, 12, 18, 24, 30, 36, 42 multiples of 6
14, 28, 42 multiples of 14
42 is the LCM
9, 18, 27, 36 multiples of 9
12, 24, 36 multiples of 12
36 is the LCM
And so forth.....
2007-11-19 10:24:16 · answer #5 · answered by saddlesore 3 · 0⤊ 0⤋
the lcm of 3, 5, and 6 is 30
2016-04-04 23:06:51 · answer #6 · answered by Anonymous · 0⤊ 0⤋
the least common multiples are......
6- 1, 2, 3
14- 1, 2, 7
the least common multiple is 2
9- 1, 3
12- 1, 2, 3, 4, 6
the least common multiple is 3
6- 1, 2, 3
15- 1, 3, 5
the least common multiple is 3
3- 1
5- 1
6- 1, 2, 3
the least common multiple is 1
2007-11-19 11:13:07 · answer #7 · answered by justme 3 · 0⤊ 0⤋
2
3
3
1
just look at the smallest number and starting with the highest...think about its factors... so for the first one 6, which will not go into 14, next you have 3, which will not work, then try 2 which WILL work, so 2 is the GCF...sorry just edited this i read it wrong...if you need to know the greatest common factor though here you go:-)
2007-11-19 10:17:50 · answer #8 · answered by Anonymous · 0⤊ 1⤋
42 36 30 30
Its the least commom multiple not factor..
2007-11-19 10:22:04 · answer #9 · answered by Anonymous · 1⤊ 0⤋
LCM6, 14=42
LCM9, 12=36
LCM6, 15=30
LCM3,5,6=30
2007-11-19 10:36:51 · answer #10 · answered by Anonymous · 0⤊ 0⤋
6=2x3
14=2x7
2x3x7=42
9=3x3
12=2x2x3
2x2x3x3=36
6=2x3
15=3x5
2x3x5=30
3=3
5=5
6=2x3
2x3x5=30
2007-11-19 10:42:05 · answer #11 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋