How do you simplify \frac { 3a } { 2a b } - \frac { 2a } { 4}?

1 Answer
Aug 23, 2017

(a(3 - ab))/(2b)

Explanation:

First, you make a common denominator.

(3a)/(2ab) - (2a)/4 = (3a)/(2ab) - (2*a^2*b)/(4ab)

Next, you multiply the fraction (3a)/(2ab) in the numerator and denominator by 2. Then you get

(6a)/(4ab)

Now you do

(6a)/(4ab) - (2 * a^2 * b)/(4ab) = (2a(3-ab))/(4b) = (a(3 - ab))/(2b)

Sorry for making it so complicated.