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 ...

How to add and subtract fractions There are two rules to remember when adding or subtracting fractions. The fractions need to have a common denominator. This means the denominator has to be the same.

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

The common standards repeatedly ask students to “apply and extend previous understandings” when working with fractions—that is, if students are able to show addition on a number line, they ...