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Mathematics 8 Online
OpenStudy (rock_mit182):

Find the least common multiple of these two expressions. 16u^3 w^2 y^6 and 24 u^5 w ^8

OpenStudy (ipwnbunnies):

You pulled out the correct variables. You can simplify the numbers a bit more.

OpenStudy (ipwnbunnies):

Oh, wait, least common multiple. I was thinking GCF. Don't remember what LCM is. :/

OpenStudy (rock_mit182):

i cannot remember that either . .:/

OpenStudy (nikato):

To find LCM of 16 and 24 Find multiples of both 16 and 24 until they are the same 16: 16,32,48,64,... 24:24,48,72,... So what multiple do they have in common?

OpenStudy (rock_mit182):

48

OpenStudy (rock_mit182):

so it would be 48u^3w^2 ?

OpenStudy (nikato):

Correct. Do the same with the variable u^3 and u^5 So find LCM of 3 and 5

OpenStudy (rock_mit182):

i mean U^3

OpenStudy (rock_mit182):

the answer is corretc im runnig out of time

OpenStudy (nikato):

Oops nvm. Variables is the one with the highest power. So it'll be 48u^5 w^8 y^6

OpenStudy (rock_mit182):

oh i see but why we have to include Y if is not common i guess

OpenStudy (nikato):

It's not common. You're looking or the least common multiple Since one of them is y^6 and the other one doesn't, or you can call it y^0 The greater one would be y^6 With variables it's the one with the bigger exponent For example, c^100 f^2 p^5. And f^9 p^4 The LCM would be c^100 f^9 p^5 Does this make sense?

OpenStudy (rock_mit182):

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