Hello welcome to MooMooMath. Today we are going to talk about how to reduce fractions and I'm going to show you two methods. There is a second video that goes over a different method of reducing fractions. So pick the one you like best. So let's start with twenty four over thirty six. I know that both of those numbers are divisible by two. Let's reduce to this ( twelve over eighteen) I can reduce again, I notice there is another common factor so I reduce again and reduce it all the way down to two thirds. So that is method one where you are looking for common factors. So what method did I use? The first step is to find any common factor, and just start factoring or reducing by dividing the numerator and the denominator by that factor, and then you try it again. You continue this until you don't have any more common factors. So let's try a second problem using the same method. I'm going to start with 108 and 144. I notice that both of those numbers are even so I'm going to start with two and divide the numerator and the denominator by two. So that gives 54 over 72. I notice I have even numbers again so I can divide by two again. When I divide by two I get 27 over 36. I notice I have common factors of three so I divide the top and bottom numbers by three and I get 9 over 12. I can then further reduce by three and end up with three fourths. So I just find a common factor and continue to reduce it down until I get the smallest form. Hope this method was helpful.
Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
Learn even more about fractions with this fraction playlist that covers the basics of fractions!!
Tagged under: reducing fractions,algebra ,fractions,numerator,How ,denominator,moomoomath,reduce,common factor,math
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes