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 problems!

We present a case study of teaching and learning fraction addition on number lines in one 6th-grade classroom that used the Connected Mathematics Project Bits and Pieces II materials. Our main ...

It is less straightforward to picture the answer to this addition because the denominators (bottom numbers) are different. You can only add and subtract fractions when the bottom numbers, or ...