How do you subtract #\frac { a - 5} { a - 4} - \frac { 4a - 2} { 2a - 8}#?

1 Answer
Zerg R.
Jul 18, 2017

See below

Explanation:

Multiply both the numerator and denominator of #(a-5)/(a-4)# by 2
#=> (2a-10)/(2a-8)#

You can now subtract the numerators since the denominators are equal

=> #(2a-10-(a-5))/(2a-8)#
=> #(a-5)/(2a-8)#

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