Wednesday, January 30, 2013


Before you freak out over the word DIVIDE understand to divide a fraction you actually multiply. You will not be dividing at all. So no need to freak out!!!!!!

The process I use to divide fractions is called KFC. It stands for Keep Flip Change
Keep – Keep the first fraction the same
                Flip – Flip over the 2nd fraction (this is called the reciprocal)
                Change – Change the division sign to multiplication and then multiply the 2 fractions

After you keep, flip, and change you will multiply the same way we learned yesterday.
Numerator x Numerator
Denominator x Denominator

Simplify (Fraction in lowest terms and Proper)

Tuesday, January 29, 2013


For my students this seems to be the million dollar question. Is it simplified? I don't know, is it?

There are ways to know if a number is simplified. You have to be on the lookout for the following things:
  • Is there a prime number in the fraction? (is the numerator or denominator prime)
  • Is the fraction made up of a even number and an odd number?
If the answer to either of these is NO, then the fraction is simplified.
  • Are the numerator and denominator both even?
  • Are the numerator and denominator both odd?
  • Is there a common factor between the numerator and the denominator?
If the answer to either of these is YES, then the fraction is NOT simplified.


Simplifying means you are creating an equivalent fraction using the simplest terms possible. This means you are creating the same fraction using smaller numbers. To do this you will always divide. You will first have to find a factor that is common to the numerator and the denominator. Next you will divide the numerator and denominator by the common factor. To make sure it is completely simplied go through the questions above. If the fraction is not simplified you will need to find another common fraction to divide by until the fraction is completely simplified.

*You will find that if you use the largest common factor that the fraction will be simplified much quicker.*


Please understand me when I say multiplying fractions is easy, I truely mean it. Multiplying fractions is actually really really easy. I would not ever say something was easy if I didn't believe it to true.

The class was given a graphic organizer that simply shows how to multiply a fraction times another fraction. On the back are the problems to be practiced. If the sheet isn't completed in class it is homework.


Sheppard Software (many different fraction activities)

Fraction Games (many diffferent fraction topics)

Soccer Math - Simplifying Fractions

Football Math - Adding Fractions

Adding and Subtracting Fractions with Noah

Game Aquarium - Lots of games to choose from

Fraction Games Online - Choose what you want to play and practice


I have gotten so behind and haven't updated the classroom blog in forever. I am very sorry. So a run down on what we have been up to lately. Since Christmas we have begun working on Fractions. We have been making sure we have all our basic fraction knowledge mastered and are gearing up to begin working on multiplying and dividing fractions. Below is a list of things we have been working on. Also in a following post will be a bunch of games for you to practice all these fraction skills.

  • Writing Fractions
  • Equivalent Fractions (Multiplying the numerator and denominator by a number)
  • Simplifying Fractions (Dividing the numerator and denominator by a common factor)
  • Changing Mixed Numbers into Improper Fractions
  • Changing Improper Fractions into Mixed Numbers
  • Adding Fractions (Butterfly Method)
  • Subtracting Fractions (Butterfly Method)