Equivalent fractions powerpoint open office
- 1. Equivalent Fractions th Mrs. Emeott's 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 different The denominator (bottom number) is different. Although they are different numbers they are the 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 Whole One Whole
- 7. Cut Them in Half 1 The Numerator 2 The Denominator (How many pieces its cut into)
- 8. Cut them in Half Again I still show the same thing, but now I also show a new fraction that is equal (equivalent) 1 And Also 2 2 4
- 9. They are the same! One Half is equivalent to 2 quarters. 1 2 2 = 4
- 10. Why use Equivalent Fractions? Equivalent Fractions make large numbers easier to deal with. Smaller numbers are simple. 50 5 1 100 = 10 = 2
- 11. To Find Equivalent Fractions: Multiply the numerator and denominator by the same number. 1 4 4 5 x 4 = 20
- 12. To Find Equivalent Fractions Multiply the numerator and denominator by the same number. 15 divide by 3 5 45 divide by 3 = 15 Both 15 and 45 have 3 as a common factor!
- 13. 15 divide by 3 5 45 divide by 3 = 15 Now 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) 1/3 b) 5/20 c) 1/2 d) 3/15
- 15. That's Correct! Nice Work!!! 5 divide by 5 1 15 divide by 5 = 3 The correct answer is 1/3.
- 16. That's Incorrect. 5 divide by 5 1 15 divide by 5 = 3 The correct answer is 1/3.