Find the common factors and simplify.

Take a picture of your solution and return it to the submission folder.

a) [[$ \displaystyle\frac {2a + 2b} {a + b} = $]]

b) [[$ \displaystyle\frac {5a + 5b} {-15a - 15b} = $]]

c) [[$ \displaystyle\frac {5a + ab} {a + b} = $]]