Adding fractions with unlike denominators: http://www.educreations.com/lesson/view/adding-fractions-with-unlike-denominators/5216818/?ref=appemail

Subtracting fractions with unlike denominators: http://www.educreations.com/lesson/view/subtracting-fractions-with-unlike-denominators/5217049/?ref=appemail

Add and Subtract fractions with unlike denominators: http://studyjams.scholastic.com/studyjams/jams/math/fractions/add-sub-unlike-denom.htm

Word Problems:

Video on adding fractions with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-fractions-with-unlike-denominators-word-problem

Video on subtracting fractions with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/subtracting-fractions-with-unlike-denominators-word-problem

Video on adding mixed numbers with unlike denominators in the fractional part: http://www.educreations.com/lesson/view/adding-mixed-numbers-with-unlike-denominators/5217239/?ref=appemail

Video on adding mixed numbers with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-subtracting-mixed-numbers-1--ex-1

Video on subtracting mixed numbers with unlike denominators in the fractional part: http://www.educreations.com/lesson/view/subtracting-mixed-numbers-with-unlike-denominators/5217344/?ref=appemail

Video on subtracting mixed numbers with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-subtracting-mixed-numbers-1--ex-2

Practice on adding and subtracting mixed numbers, the answer must be in simplest form( we don't practice simplifying much because it is not required in 5th grade, but is is good to know): http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/e/adding-and-subtracting-fractions-with-unlike-denominators-word-problems

Practice on adding and subtracting mixed numbers, the answer must be in simplest form( we don't practice simplifying much because it is not required in 5th grade, but is is good to know): http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/e/adding_subtracting_mixed_numbers_1

Student don't have to do this in 5th grade, but a good extension-simplest form and reducing fractions: http://www.mathplayground.com/howto_fractions_reduce.html

Subtracting fractions with unlike denominators: http://www.educreations.com/lesson/view/subtracting-fractions-with-unlike-denominators/5217049/?ref=appemail

Add and Subtract fractions with unlike denominators: http://studyjams.scholastic.com/studyjams/jams/math/fractions/add-sub-unlike-denom.htm

Word Problems:

Video on adding fractions with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-fractions-with-unlike-denominators-word-problem

Video on subtracting fractions with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/subtracting-fractions-with-unlike-denominators-word-problem

Video on adding mixed numbers with unlike denominators in the fractional part: http://www.educreations.com/lesson/view/adding-mixed-numbers-with-unlike-denominators/5217239/?ref=appemail

Video on adding mixed numbers with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-subtracting-mixed-numbers-1--ex-1

Video on subtracting mixed numbers with unlike denominators in the fractional part: http://www.educreations.com/lesson/view/subtracting-mixed-numbers-with-unlike-denominators/5217344/?ref=appemail

Video on subtracting mixed numbers with unlike denominators: http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/v/adding-subtracting-mixed-numbers-1--ex-2

Practice on adding and subtracting mixed numbers, the answer must be in simplest form( we don't practice simplifying much because it is not required in 5th grade, but is is good to know): http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/e/adding-and-subtracting-fractions-with-unlike-denominators-word-problems

Practice on adding and subtracting mixed numbers, the answer must be in simplest form( we don't practice simplifying much because it is not required in 5th grade, but is is good to know): http://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-addsub-frac-word-problems/e/adding_subtracting_mixed_numbers_1

Student don't have to do this in 5th grade, but a good extension-simplest form and reducing fractions: http://www.mathplayground.com/howto_fractions_reduce.html