Khan Academy
Khan Academy: Subtracting Fractions Word Problem: Tomatoes
Sal solves a word problem by subtracting mixed numbers with unlike denominators.
Sector Matemática
Sector Matematica: Resta Numeros Mixtos 01
This video tutorial shows how to subtract mixed numbers with different denominators. [2:17]
Sector Matemática
Sector Matematica: Resta Numeros Mixtos 02
This video tutorial shows how to subtract mixed numbers from a whole number and a whole number from a mixed number. [2:26]