1 / 8

Comparing fractions

Comparing fractions. Miss joubert. Three ways to compare. If numerators are the same and denominators are different EASY If denominators are different. Benchmarks (above or below half way). Use equivalent fractions . Numerators same. What do you notice: .

kieu
Download Presentation

Comparing fractions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Comparing fractions Miss joubert

  2. Three ways to compare • If numerators are the same and denominators are different • EASY • If denominators are different Benchmarks (above or below half way) Use equivalent fractions

  3. Numerators same • What do you notice:

  4. Numerators same – denominators different • Hopefully you noticed: • The more parts you divide the whole into • the smaller each part gets • So if numerators are the same (You comparing the same amount) • Then the bigger the denominator – the smaller the fraction!

  5. EXAmples • Which fraction is bigger? • or or • or or

  6. If denominators are different • OPTION 1 – Check for benchmarks • Work out if you fraction is bigger or smaller than half • If one is less than half and other is bigger than half then you have your answer! • E.g. Is or bigger?

  7. If denominators are different • OPTION 2 – Make the denominators the same • If benchmarks don’t work (both smaller or bigger than half way) • Use equivalent fractions to compare more easily • E.g. Is or bigger? • Change : x 2 = So therefore is bigger

  8. Now it is your turn • Use benchmarks or equivalent fractions to work our which fractions are bigger

More Related