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.

To add improper fractions: The simplest approach is to add the improper fractions using a common denominator. close common denominatorA denominator that is the same for two or more fractions ...

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 ...

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 ...

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 ...

To add improper fractions: The simplest approach is to add the improper fractions using a common denominator. close common denominatorA denominator that is the same for two or more fractions ...