Algebreic Fractions Flashcards
Which is the numerator and denominator?
Numerator = Top
Denominator = Bottom
How do you add fractions?
By finding a common denominator. An easy way to do this is:
1st) Multiply denominator of fraction 1 by numerator and denominator of fraction 2, creating a new fraction
2nd) Repeat for fraction 2
How do you factorise?
Find the HIGHEST COMMON FACTOR between the terms, then place it infront and extract it
How do you find the product of Binomials?
I.E How do you multiply stuff that is in 2 brackets like this? (x+5)(x+1)
Using FOIL
First - first terms in each bracket
(X + /) (X + /)
Outer - terms on far left and far right of both brackets
(X + /) (/ + X)
Inner
(/ + X) (X + /)
Last - Last terms in each bracket
(/ + X) (/ + X)
How do you convert a mixed fraction into an improper ‘top heavy’ fraction?
1st) Multiply whole number by the denominator
2nd) Add numerator to the result
3rd) Place this number over the denominator
What format does a quadratic equation take?
ax^2 + bx + c = 0