3.

Here we are adding fractions, so we need common denominators. Factor both denominators.

Fill in the missing factors to build common denominators.

Now that we have common denominators, we add the numerators. Remove parentheses.

Combine like terms.

Check to see if this will reduce. Note that the top factors.

Not only does the top factor, one of the factors cancels with one of the factors on the bottom, and the fraction reduces to