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!

There are two basic ways to do fractions on your iPhone calculator. Here's what you need to know to use the built-in app.

Despite the existence of the metric system and an increased reliance in recent years on decimal fractions to write partial amounts (such as 2.5), we often find ourselves wanting to drop in a true ...