This exercise not only helped students finally get why subtracting a negative is the same as adding a positive, but also inspired an approach to adding and subtracting positive and negative ...

In this KS2 Maths article you'll learn how to add and subtract fractions. We also have a KS2 Maths quiz, videos and lots of examples.

Learn how to add and subtract to three decimal places with our BBC Bitesize Scotland Maths guide for Third Level in Scotlands CfE Curriculum for Excellence.

In adding and subtracting fractions with unlike denominators, you have to get a least common denominator which is exactly like the least common multiple it just so happens to be in the denominator.