anonymous
  • anonymous
What is the simplified form of the quantity x over 4 plus y over 3 all over the quantity x over 3 minus y over 4?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
|dw:1437104566947:dw|
skullpatrol
  • skullpatrol
Any ideas?
anonymous
  • anonymous
Find a common denmoniator

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More answers

skullpatrol
  • skullpatrol
Correct.
anonymous
  • anonymous
so we could multiply the top fraction to get 12x
skullpatrol
  • skullpatrol
What is LCM of 3, 4, and 8?
anonymous
  • anonymous
24
skullpatrol
  • skullpatrol
Good. Now get a common denominator of 24 in the numerator and the denominator.
anonymous
  • anonymous
ok
anonymous
  • anonymous
How do I do that?lol
anonymous
  • anonymous
nvm! I got it!
skullpatrol
  • skullpatrol
Multiply the numerator and the denominator of each individual fraction by the appropriate number.
nincompoop
  • nincompoop
|dw:1437105082923:dw|
anonymous
  • anonymous
would it be 6x/25 + 8y/24 divided by 8x/24 - 3y/24
nincompoop
  • nincompoop
|dw:1437105227127:dw|
nincompoop
  • nincompoop
|dw:1437105269304:dw|
anonymous
  • anonymous
the ldc would be 12 for the top and 24 for the bottom
skullpatrol
  • skullpatrol
Keep them the same
skullpatrol
  • skullpatrol
6x/24 + 8y/24 divided by 8x/24 - 3y/24
nincompoop
  • nincompoop
|dw:1437105336467:dw|
anonymous
  • anonymous
would it e 8x-24 - 3y/24
nincompoop
  • nincompoop
|dw:1437105479570:dw|
anonymous
  • anonymous
Okay:)
nincompoop
  • nincompoop
|dw:1437105579554:dw|
anonymous
  • anonymous
then flip the 2nd fraction
nincompoop
  • nincompoop
|dw:1437105658984:dw|
skullpatrol
  • skullpatrol
(6x + 8y)/(8x - 3y)
anonymous
  • anonymous
3x+4y/ 4x-3y as the answer
nincompoop
  • nincompoop
|dw:1437105679121:dw|
anonymous
  • anonymous
Ok, I understand:)
skullpatrol
  • skullpatrol
Thanks for trying :)
nincompoop
  • nincompoop
|dw:1437105797034:dw|
nincompoop
  • nincompoop
|dw:1437105856123:dw|
anonymous
  • anonymous
2x-5y?
nincompoop
  • nincompoop
not quite, it doesn't work that way with division :)
nincompoop
  • nincompoop
you can keep it that way because that is simple enough
anonymous
  • anonymous
ok:) Thanks so much!!!!
anonymous
  • anonymous
After the fraction x plus 1 all over 2 minus the fraction x plus 2 all over 3 x have been combined using the least common denominator of 6x, what is the numerator?
anonymous
  • anonymous
This one is easy, I just need someone to check it:)
nincompoop
  • nincompoop
write it out
anonymous
  • anonymous
|dw:1437106110770:dw|
anonymous
  • anonymous
−x2 + 4x + 2 3x2 + x − 2 −3x2 − 4x + 2 3x2 + x − 4
anonymous
  • anonymous
I think it's B?
skullpatrol
  • skullpatrol
Why?
anonymous
  • anonymous
Guessing;)
skullpatrol
  • skullpatrol
You need a better reason :)
anonymous
  • anonymous
Lol okay, I'll try
skullpatrol
  • skullpatrol
Please do try.
nincompoop
  • nincompoop
|dw:1437106186630:dw|
nincompoop
  • nincompoop
see how I am not completely multiplying the denominator to obtain the LCD when variables are involved? it is a trick so you won't have to do extra work since you will immediately see that when you divide, it cancels out the other.
anonymous
  • anonymous
Ok! It kinda makes sense now. Hmmm...so D?
nincompoop
  • nincompoop
you have to finish the work :P we do not give out answers
anonymous
  • anonymous
3x^2+3x+(-2x-4)/6x
anonymous
  • anonymous
then you'd get 3x^2+x-4.
anonymous
  • anonymous
sorry :(
skullpatrol
  • skullpatrol
Multiply out the numerator and simplify
nincompoop
  • nincompoop
|dw:1437106412926:dw|
nincompoop
  • nincompoop
|dw:1437106558025:dw|