find the LCD for rational expressions

[shaytardgirl]

I hope me teach doesnt get mad at me for doing it this way lol I forgot the other way btw we have to do this in fifth grade

[slipknot09atforum]

Thank you, I was looking for a faster method to do this and yours sufficed. :)

[Naruto1fanforever]

now why the hell would you need another 5!!!

[robichaudd]

@Naruto1fanforever You need two 5's total because one of the denominators has two 5's as a factor, and the LCD must contain each denominator completely.

LCD = 5*5*7*z^8

First denominator is 5*7*z^8 (yes, the LCD contains that)

Second denominator is 5*5*7*z^5 (yes, the LCD contains that)

[MonkeySult14]

I COULD KISS YOU!!!

[musicbyjamie]

This was sooooo helpful...thanks so much!! Honestly, wish more math teachers explained stuff in this way.

[smithchild80]

Thank you very much.

[ashcole223]

u sound like Jermey from Code Lyoko :D thats so awesome...math on the other hand sux

[21gunsgirl4]

what if your denomonator is a letter?

[robichaudd]

@21gunsgirl4 Further along in the video there's an example that shows how to handle variables.

[TheMadisonHang]

perfect

[SuperMrVijay]

Thank you

[limitlesspotentialx]

thanks :D

[TheJaylennon]

I have a theory about math teachers.. Most of them just "got it" when they were young.. it kind of popped out to them... It makes sense to them like understanding english.. They forget about the "babies" who are still learning how to talk and walk... They forget that we have to "sound it out" before we can hold the conversation... thank you for "sounding it out"... :)

[TheJaylennon]

Thank You!

[latviankid2]

Nice simple steps,Thanks so much!

[makemejelly31]

This is very helpful! This entire chapter on rational expressions is getting the best of me, but this video made it so much easier! :]

[DJGURRELA]

every time i hear lcd I think of lsd

[Propezify]

Thanks a ton

[milkeatscereal]

Beautifully explained...THANKS :)

[haz634]

so basicly the numerator we just forget about it

[robichaudd]

@haz634 If all you're doing is finding the LCD, then yes, forget about the numerators. If you're then going to add or subtract the fractions you have to bring the numerators back into the picture, like the first problem in the video shows.

[Zipporah15Latoya7]

thankyouuuuuu! :)

[teeman9266]

Who the hell disliked this? This shit can save your life in school!

[TheAutumnEffect9]

You must use the same book as my teacher!

[jeanessa13xox]

You're such a great help! Thanks! Your tutorial was just easy and simple compared to what our teacher taught us hahaha.

Needing this for my 40-item assignment. ;_;

[arpitahuja]

Thanks so much!

[MsElholmes]

Thank you so much! I've been looking at all sorts of videos trying to figure out how to do this and yours really showed me how to do it :) Thanks again!

[shojolover112490]

This made alottof sense.!!!

[Natasha26]

she's very methodical

[kilahbilahh]

OH MY GOSH ! Thank you soooo much ! I missed a few days of school cause I was sick and didn't get to learn this . Wow, this is suchhh a great help ! Thanks again ! [[:

[koliob]

thank you very much!!

[lankymonkey04]

thanks

[failgame]

Thank you very much for this: my teacher is horrible. It's amazing how simple things are when the teacher actually knows how to teach.

It is upsetting that bad teachers continue to fail at teaching and retain their jobs.

[bosjon01]

Thank you, very helpful.

[DateDestinysMom]

Thanks for helping me understand more easily.

[devin306195]

he sounds like hes 10-14 and  hes smart :D

[staciesport]

I wish that I could utilize this video, but can't because of the background noise!

[themorg22]

THANK YOU! You're great!!

[jediknightanime]

omg this really helped alot..i suck at ath and didnt understand this chapter

thank you!!!!!

If u were my teacher i would actually enjoy math cuz u make it so easy!

[sunshinedaisies52]

wat if the denominators are x-y and 2y-2x

[NeoXC]

Thanks! It's so difficult when teachers try to explain it in such a way that they automatically start to do it themselves, mentally. It would be helpful if all math was taught this way...in STEPS, not jumping around, mentally. I agree with the comment below. We need more teachers like you!

[lordsilens]

Nice clear explaining!

I was struggling to remember how to do this and you brought it right back for me!! thanks alot

[skatexxrat88]

than u so much i got a 100 on the biggest test of my life

[lazyanimelover555]

Thank you i wasnt listning in class so i forgot how i do this. lol you are the best.

[Thisonebrotha]

I love you

[Paulxy6]

oh my god thank you so much i really had no clear way to explain my little brothers how to do it because im used to find it mentally but this will do perfectly keep it up we REALLY do need more teachers like you with this current education