Question

2 3/4 + 1 1/8 =

Answer 1

one way is to change each mixed number to an improper fraction
can you change \(2 \frac{3}{4}\) to an improper fraction?

Answer 2

Here is an example
http://www.khanacademy.org/math/arithmetic/fractions/v/converting-mixed-numbers-to-improper-fractions

Answer 3

after you have changed both mixed numbers to improper fractions, you add them
Here is an example of how to do it
http://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-unlike-denominators