#3**+4 **

Best Answer

Okay :)

Least common Multiple for 12: 12, 24, 36, 48, 60, 72, 84, ...

Least common Multiple for 15: 15, 30, 45, 60, 75, 90..

Was I any good?

Hayley1
Dec 10, 2015

#4**+2 **

Hayley: not quite. Look here:

12=2 X 2 X 3

15=3 X 5, therefore:

LCM=2 X 2 X 3 X 5=60, which is the correct answer.

Guest Dec 10, 2015

#5**0 **

Oh, okay! I see what i did wrong there! I did it a different way. They both go into 60. My bad! I see now.

Hayley1
Dec 10, 2015

#6**+5 **

**Attn: Hayley1 and others **

**Ok you kids have got some concept problems here.**

**MULTIPLES**

A multiple of a number is bigger to or equal to the number.

Multiples of 12 are 12, 24, 36, 48, 60, 72, ........., 120 ....

Multiples of 15 are 15, 30, 45, 60, 75, 90, ....., 120, ....

The common multiples are the ones that are common to both lists. that is 60, 120, 180, .......

The LEAST common multiple is 60 because that is the smallest common multiple. It is the one with the LEAST value.

-----------------------------------------------------

**FACTORS**

The factors of 12 are 1, 2, 3, 4, 6, 12

The factors of 15 are 1, 3, 5, 15

So the HIGHEST common factor of 12 and 15 is 3

Melody
Dec 11, 2015