Algebraic fractions Flashcards
1
Q
What do you need to do if the top or bottom of the fraction has more than one term?
A
Factorise before simplifying
2
Q
How do you add or subtract algebraic fractions?
A
Find a common denominator, add or subtract the numerators, don’t change the denominator, simplify if possible
3
Q
How do you multiply algebraic fractions?
A
Multiply the numerators and multiply the denominators, then simplify if possible.
4
Q
How do you divide fractions?
A
Change the second fraction to its reciprocal, change the division sign to the multiply sign, multiply the fractions and then simplify if possible.
5
Q
What is a^2 - b^2 factorised?
A
(a + b)(a - b)
