Operations with Rational Numbers

How Do You Simplify a Fraction Over a Fraction?

Complex fractions can be pretty complex. Luckily, you can simplify a complex fraction to make it much easier to work with. See how in this tutorial!
How Do You Convert a Temperature from Fahrenheit to Celsius?

Did you know that many countries use Celsius to talk about temperature? When you have a temperature in Fahrenheit, it's helpful to know what that temperature is in Celsius. This tutorial shows you how to perform that conversion!