Adding and Subtracting Mixed Fractions

During lunch, Julio drinks 2  3/4 cups of milk.  Alan drinks 3/8 cups of milk.  Fernando drinks 1  1/6 cups of milk.  How much milk do the 3 gentleman drink? 

Aryana jogged 3  5/7 km.  His sister jogged  2  4/5 km.  How much farther did Aryana jog than his sister?

Kathy has 3/9 of a pizza and Laila gave her 1/3 of a pizza.  How much pizza does Kathy have now?

What do you need to have when adding unlike fractions?

Add the mixed fractions with unlike denominators: $$2\frac{2}{5} + 1\frac{3}{4}$$

Add the mixed fractions with unlike denominators: \(3\frac{1}{2} + 2\frac{3}{8}\)

Add the mixed fractions with unlike denominators: $$3\frac{1}{2} + 2\frac{3}{8}$$

Add the mixed fractions with unlike denominators: $$3\frac{1}{6} + 2\frac{1}{3}$$