Equivalent Fractions - PowerPoint PPT Presentation

Loading...

PPT – Equivalent Fractions PowerPoint presentation | free to download - id: 419fde-NjMxM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Equivalent Fractions

Description:

Equivalent Fractions Raising and Reducing Pizza Remaining 3/4 6/8 9/12 Multiply by 1 5 x 1 = 235 x 1 = 2/3 x 1 = a x 1 = 5 235 2/3 a What is 1? – PowerPoint PPT presentation

Number of Views:11
Avg rating:3.0/5.0
Slides: 25
Provided by: EITC8
Learn more at: http://numberbasics.com
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Equivalent Fractions


1
Equivalent Fractions
  • Raising and Reducing

2
Pizza Remaining
3/4
9/12
6/8
3
Multiply by 1
  • 5 x 1
  • 235 x 1
  • 2/3 x 1
  • a x 1

5
235
2/3
a
4
What is 1?

5
Raising Fractions

6
Raising Fractions
  • To raise fractions, increase the denominator.
  • Multiply numerator and denominator (top and
    bottom) of the fraction by the same number.
  • This is the same thing as multiplying by 1.

7
Raising Fractions
  • Multiply numerator and denominator (top and
    bottom) of the fraction by the same number.
  • This is the same thing as multiplying by 1.

8
Raising Fractions
  • Raise 3/8 to 56ths.
  • Multiply numerator and denominator (top and
    bottom) of the fraction by the same number.

9
Raising Fractions
  • Raise 3/8 to 56ths.
  • Multiply numerator and denominator (top and
    bottom) of the fraction by the same number.

10
Reducing Fractions
  • Opposite of raising.
  • Make the denominator smaller.
  • Divide numerator and denominator by the same
    number.

11
Reducing Fractions
  • Might take more than one step.
  • More than one way.
  • Divide numerator and denominator by the same
    number.

12
Reducing Fractions
  • Divide numerator and denominator by the same
    number.

13
Reducing Fractions
  • Divide numerator and denominator by the same
    number.

14
Proper and Improper
  • An improper fraction has a numerator as large or
    larger than the denominator.
  • A proper fraction has a numerator smaller than
    the denominator.

15
Mixed vs. Improper
  • A mixed number is a whole number and a fraction
    part.
  • A mixed number can be written as an improper
    fraction.

16
Work this on paper.
  • We have 5 full crates of apples and one crate
    with only 7 apples. The full crates each contain
    30 apples.
  • How many apples altogether?

17
Mixed to Improper.
  • Multiply the 5 crates times the 30 in each crate
    and add the 7 left over.
  • To change a mixed number to improper, multiply
    the whole number by the denominator and add the
    numerator. Keep the denominator the same.

18
Mixed to improper
  • Try some.

19
Mixed to improper
  • Try some.

20
Try this on paper.
  • We have 135 pencils and boxes that hold 12
    each.
  • How many full boxes? How many loose pencils?
  • How did you get your answer?

21
Try this on paper.
  • We have 135 pencils and boxes that hold 12
    each.
  • How many full boxes? 11 How many loose pencils?
    3
  • How did you get your answer?
  • Divided 135 by 12. The remainder was the left
    over.
  • 135/12 11 3/12

22
Improper to Mixed
  • Divide.

23
Try these.

24
Answers
About PowerShow.com