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.

Have you ever tried to add or subtract fractions that have different denominators? It’s tricky, right? Join Ms. Susanna Post in this lesson to learn how to solve these types of challenging ...

To subtract mixed numbers with different denominators, when the second fraction is greater than the first fraction: Change the mixed numbers to improper fractions.

The secret to successfully adding or subtracting fractions lies in one crucial concept: finding a common denominator. Think of it like trying to combine different sized pieces of a puzzle—you ...

Revise how to add, subtract, multiply and divide fractions, how to use a calculator for fractions and how to find fractions of amounts in this GCSE maths guide.