What's a Complex Fraction?

Mix things things up in your elementary math class with a series of problem-solving exercises. Presented with a series of mixed number word problems, young mathematicians are asked to solve them by using either visual fraction...

Have young mathematicians subtracting fractions in no time with this manipulative-based math lesson. Using their sets of fraction circles, students explore a number of word problems involving the subtraction of fractions before working...

Individuals learn to divide and conquer complex numbers with a little help from moduli and conjugates. In the second activity on complex number division, the class takes a closer look at the numerator and denominator of the...

This video continues looking at dividing complex numbers by looking at the conjugate of a complex number. The instructor then uses the conjugate to rationalize the denominator of a rational expression with a complex number in the...

This video continues looking at dividing complex numbers by looking at the conjugate of a complex number. The instructor then uses the conjugate to rationalize the denominator of a rational expression with a complex number in the...

These presentations by Monica Yuskaitis are particularly good. In this one, she shows viewers how to deal with subtracting fractions that have unlike denominator, no small task! This is a tricky process, and this PowerPoint takes young...

A pint sized math master shares what he knows about fractions. He clearly defines what the denominator and numerator is, what they represent, and what a fraction is. He is a little flustered and his delivery is rushed, but he's got a...

A quick explanation of what constitutes a complex fraction. The instructor shows an example of a fraction in the numerator, and another with the fraction in the denominator. Note: This video does not go into simplifying complex fractions.

Adding fractions that are in rational expression form? Do they have a common denominator? No? Well, then the least common denominator needs to be found. How is the least common denominator of rational expression found? Watch this video...

Use the least common denominator to solve rational equations with variables in the denominators of algebraic fractions. Learners can watch this video to find out how to do just this! An instructor solves 2 problems by finding the least...