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Algebric fractions
by tommymcc02 Junior Cert Mathematics — 27/09/16 12

I was out the day we did these and when my maths teacher went through them with me he was a bit rushed and i still don't really understand them. My maths exam is in two days and i need help.


12 Comments
arthurmoran — 25/05/16
Hahahahahahahahahahahahahaha
SryanBruen — 25/05/16
http://revisionmaths.com/gcse-maths-revision/algebra/algebraic-fractions
JiteshKhatri — 25/05/16
Cross multiply and put it all over one denominator. Then simply simplify
Conall_Molloy — 26/05/16
You get Susie rogers and multiply it by the doncha donuts
mossy_oc — 26/05/16
Hi conall
Conall_Molloy — 26/05/16
suh dude
arthurmoran — 26/05/16
So tommy i have a fantastic method just get susie rogers and take her with u to fast food fridays with all the boys
EA22 — 26/05/16
We had our maths exam today and algebraic fractions did not come up !! I was so happy 😂
JamesClavin — 28/05/16
same
arthurmoran — 30/05/16
EA22 you lucky boy lets be best friends
Conall_Molloy — 27/09/16
Arthur stop trying to improve your social status by getting likes on a website
Alex F — 27/09/16
Hi Algebraic fractions are simply fractions with algebraic expressions on the top and/or bottom. When adding or subtracting algebraic fractions, the first thing to do is to put them onto a common denominator (by cross multiplying). When adding or subtracting algebraic fractions, the first thing to do is to put them onto a common denominator (by cross multiplying). e.g. 1 + 4 (x + 1) (x + 6) = 1(x + 6) + 4(x + 1) (x + 1)(x + 6) = x + 6 + 4x + 4 (x + 1)(x + 6) = 5x + 10 (x + 1)(x + 6) Solving equations When solving equations containing algebraic fractions, first multiply both sides by a number/expression which removes the fractions. Example Solve 10 -2 = 1 (x + 3) x multiply both sides by x(x + 3): ∴ 10x(x + 3) - 2x(x + 3) = x(x + 3) (x + 3) x ∴ 10x - 2(x + 3) = x2 + 3x [after cancelling] ∴ 10x - 2x - 6 = x2 + 3x ∴ x2 - 5x + 6 = 0 ∴ (x - 3)(x - 2) = 0 ∴ either x = 3 or x = 2 Just remember to attempt every question,even it looks difficult, you get attempt marks from writing the first sentence
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