Finding the LCD for a group of Rational Expressions

0:00 - 2:05 Basic Definitions
2:06 - 9:46 Fraction Examples
10:09 - 10:54 Method
10:55 - 13:05 First Example
13:06 - 14:34 Second Example
14:35 - 16:03 Third Example
16:04 - 17:10 Fourth Example
17:11 - 18:11 Fifth Example

In this video, we learn how to find the LCD or least common denominator for a group of rational expressions.

[Greenemath]

Don't forget to check out our free full-length courses on GreeneMath.com

[cupman]

This helps so much thanks, I've been stuck on this assignment and this really helped.

[hannahceskabartolay]

i learned more by watching this video than by our online class teacher i-

[Elsayed]

I have been stuck on a question for 2 hours but i watch this for 2 minutes and I understand thank you

[layanalkhatib]

excellent teacher deserves the best and deserves a big

[michaelisntoriginal]

Oh my god. You are so great. I couldnt listen well in my math class because i am at the back and i was going to cry.

[by.her_]

i have an exam tomorrow, thank you for making this<3

[ezsnova]

You just save my PRE-COLLEGE MATH class thanks a lot

[mfranz]

Thank you very much!!! You just saved a life.

[justapollo]

I'm in Calculus 2, we're doing basic limits and somehow I completely forgot how to do this. Thank you! :D

[mandalagan]

Thank you so much and btw @ 4:13 how did you get 3/3 from?

[fabs]

Thank you so much! This really helped me. You teach clearly.

[____-zkiq]

This really helped me before my test. Thank you.

[selfmadeshortstories]

What if you have a rational expression where both the numerator and the denominator were factorable in themselves? Would you factor both the numerators and denominators or just the denominators? Thank you.

[loonatheuniverse]

Thank u so much! My module is so confusing and my head is wrecked. U helped me understand every thing, thank u sm. 😭✋

[taniwhaaa]

At 9:35 in the video, you multiplied -9/20 by 6/6. Why is that? Where did we get the 6/6 from?

[FujishiroX]

What is the application that you use to write out your steps?

[xrn]

At 15:02 - Why do you select the terms you do- i.e. why do you decide to find the LCM of the second term from the denominator of the first fraction, and the first term from the second term as opposed to the other way around? Could you do it the other way well(first term from first fraction, second term from second fraction) or would that not work? . Is there a rule to this, or do you just pick the ones that will be easier to factor? I'm having trouble understanding this one part.

[poor]

hi! i just discovered your video today and it helped me a lot with my assignment! im down with most of it except one. could you perhaps help me with it? i'd really appreciate it!

the problem is:
find the LCD of x²/x-3 and 4/3-x

its really confusing, ty!

[Thee_baatman]

Thank you for making this video. Very helpful