Khan Academy Wiki

The Adding and subtracting mixed numbers with like denominators 2 exercise appears under the 4th grade (U.S.) Math Mission. This exercise practices the arithmetic operations of addition and subtraction on the set of fractions in the form of mixed numbers.

Types of Problems[]

There is one type of problem in this exercise:

  1. Add or subtract the numbers: This problem has either and addition or subtraction problem involving two mixed numbers. The user is asked to give the correct answer to the arithmetic problem.
    Adding and subtracting fractions with like denominators 2

    Add or subtract the numbers

Strategies[]

Knowledge of adding and subtracting fractions and mixed numbers is essential to ensure success in this exercise.

  1. There is borrowing or carrying on some problems in this exercise.
  2. Users are required to reduce fractions to get correct answers (if they don't, they will receive a notification saying that "You must simplify the fraction").
  3. Users shouldn't forget to leave a space between the integer part and fraction part when answering.

Real-life Applications[]

  1. Fractions appear in every-day media to display information to consumers.