Equivalent fractions powerpoint open office

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  • 1. Equivalent FractionsthMrs. Emeotts 4 Grade Class Clare Primary School

2. Table of Contents: What is an equivalent fraction? Why use equivalent fractions?How to find equivalent fractions? 3. Equivalent Fractions Equivalent means Equal The numerator (top number) is differentThe denominator (bottom number) is different.Although they are different numbers they arethe same amount. 4. Fraction Models: kmott.wikispaces.com 5. Fraction Models: So 2/3 is the same as 8/12.Image source:visualfractions.com 6. One WholeOne Whole 7. Cut Them in Half 1 The Numerator 2The Denominator(How many pieces its cut into) 8. Cut them in Half AgainI still show the samething, but now I alsoshow a new fractionthat is equal(equivalent)1 And Also 224 9. They are the same!One Half is equivalent to 2 quarters.1 22=4 10. Why use Equivalent Fractions?Equivalent Fractions make large numbers easier to deal with.Smaller numbers are simple.50 51100 = 10= 2 11. To Find Equivalent Fractions:Multiply the numerator and denominator by the same number. 14 4 5 x4 = 20 12. To Find Equivalent FractionsMultiply the numerator and denominator by the same number.15divide by 3545 divide by 3 = 15Both 15 and 45 have 3 as a common factor! 13. 15divide by 3545divide by 3 =15Now can you make 5/15 smaller? In other words what number does 5 and 15 have in common? 14. How would you make 5/15 smaller?a) 1/3b) 5/20c) 1/2d) 3/15 15. Thats Correct! Nice Work!!!5divide by 5 115 divide by 5=3 The correct answer is 1/3. 16. Thats Incorrect.5divide by 5 115 divide by 5=3 The correct answer is 1/3.