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 ...

Find out how to add and subtract fractions with matching and different denominators in this Year 6 article from BBC Bitesize.

Adding and subtracting 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 ...

Use visual fraction models to add and subtract fractions with the same denominators.

They add and subtract fractions with the same denominator (bottom number), multiply fractions by whole numbers and understand relationships between fractions and decimals.

Another sticking point for many students is adding fractions with different denominators—for example, coming up with 11/12 when asked to add 3/5 and 8/7.

Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and ...