Question

How do you simplify `\frac { 7a - 4b } { 4a } - \frac { 3a - 3b } { 4a }`?

Answer 1

`(4a - b)/(4a)`

Here's how I did it:

Explanation:

Since both expressions have the same denominator, we can just combine the two expressions:
`(7a - 4b)/(4a) - (3a-3b)/(4a)`

`(7a-4b-3a+3b)/(4a)`

And now we combine like terms:
`(4a - b)/(4a)`

Hope this helps!