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## Arithmetic (all content)

### Course: Arithmetic (all content)>Unit 5

Lesson 5: Comparing fractions

# Comparing and ordering fractions

Finding common denominators of multiple fractions to order them. Created by Sal Khan.

## Want to join the conversation?

• what if you had a question that says smallest to largest and the numbers are 3/5 9/10 1/4 5/12 which number well go to the smaller place and which one is going to the bigger place?
• One way you could go about it is dividing them into two groups: Numbers that are more than one half and numbers that are less than one half. Then divide each group in half and check the numbers that are more and less than 1/4 and then the same for 3/4. This is not the most efficient way, but it works and you don't have to make all of the fractions have the same denominator. Another way is to line them up after you make all of the fractions have a common denominator.
• I get stress out and don't wanna do it way to hard please make it easy for beginners...?
• this takes too long. is there a more simple and faster way to do this? :(
• yes just try to look at it closely,and how they are different are but don't give up!
(1 vote)
• this is so hard can you make it a little easyer please?
• wait I am confused doesn't 6-5=1? Not 0 plz help
• Yes. 6-5=1 because 5+1=6
Another example is 16 - 15 = 1.
No matter what example I give you, you will always see in the ones place that same 6 - 5 = 1!
• is their a faster and easier way?
• I think the learning curve just went through the ceiling with this video. I don't get why someone just wouldn't use a calculator for this. It feels like such a complex way of doing something, and suddenly it's as if I have to do 10x the amount of calculations in my head compared to the rest of the course.

In fact I don't ever recall the method of finding the least common denominator every explained this way...have I missed a previous video? I feel really deflated with this one...
• this doesn't make sense
• i understand, but he is probably doing the same thing that you are doing, but waaay into detail