Slide 1:8.1 Equivalent Fractions and Simplest Form Objective: Identify and write
equivalent fractions in simplest form.
Slide 2:Number of the Day
4 and 24 are multiples of this number.
2 and 3 are not.
What is the number?
Slide 3:Equivalent Fractions – two fractions with different numbers that have the same value.
Slide 4:Simplest Form –
when the numerator and denominator of a fraction have no common factors other than 1.
Slide 5:How many eights are equivalent to ½?
How many sixths?
How many fourths?
Slide 6:Multiply! =
Slide 7:Multiply! =
Slide 8:Multiply! =
Slide 9:Multiply! =
Slide 10:Divide! =
Slide 11:Divide! =
Slide 12:Tides in Seattle, WA, average about
of tides in Canada’s bay of Fundy. 12
42 What is in simplest form? 12
42
Slide 13:12
42 = 12: 1, 2, 3, 4, 6, 12
42: 1, 2, 3, 6, 7, 14
Slide 14:12
42 = 12: 1, 2, 3, 4, 6, 12
42: 1, 2, 3, 6, 7, 14
Slide 15:12 ÷ 6
42 ÷ 6 = 12: 1, 2, 3, 4, 6, 12
42: 1, 2, 3, 6, 7, 14
Slide 16:12 ÷ 6
42 ÷ 6 = 12: 1, 2, 3, 4, 6, 12
42: 1, 2, 3, 6, 7, 14 2
7
Slide 17:REMEMBER!
If you do something to the top or bottom of the fraction, you HAVE to do the SAME thing to the other part!
Slide 18:Image Attributions
Slide 1: Image: 'stencil - 3 and bit' www.flickr.com/photos/49968232@N00/12914012
Slide 2: Image: 'Happy Pi Day (to the 36th digit)!' www.flickr.com/photos/64419960@N00/2332789392
Slide 3, 4, 5: Image: 'fraction' www.flickr.com/photos/49968232@N00/42098875
Slide 12: Image: 'Long tailed boat' www.flickr.com/photos/16870604@N07/2391335000
Slide 17: Image: 'MashupCamp' www.flickr.com/photos/27403767@N00/102492766