Practice adding and subtracting mixed numbers with different denominators. No regrouping required. Practice adding and subtracting mixed numbers with common (like) denominators. Items require regrouping (borrowing). biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
Add and subtract mixed numbers (no regrouping)Get 5 of 7 questions to level up! Compare fractions and mixed numbersGet 3 of 4 questions to level up!.