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Comparing and Order Fractions with Unlike Denominators Copyright © 2013 Kelly Mott.

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Presentation on theme: "Comparing and Order Fractions with Unlike Denominators Copyright © 2013 Kelly Mott."— Presentation transcript:

1 Comparing and Order Fractions with Unlike Denominators Copyright © 2013 Kelly Mott

2 Comparing Fractions Part 1: ReviewReview Part 2: LessonLesson Copyright © 2013 Kelly Mott

3 REVIEW Copyright © 2013 Kelly Mott

4 FOCUS QUESTION: What symbols do we use when we compare fractions? Copyright © 2013 Kelly Mott

5 Symbols means ______________________. Copyright © 2013 Kelly Mott

6 FOCUS QUESTION: How do we compare fractions with different denominators? Copyright © 2013 Kelly Mott

7 There are two ways to compare fractions with different denominators. Copyright © 2013 Kelly Mott

8 If fractions do not have the same denominators, we need to find a common multiple and multiply to get the bottoms the same. 2 4 3 8 Copyright © 2013 Kelly Mott

9 4 3 8 4 Practice 1: Copyright © 2013 Kelly Mott

10 2 1 3 6 Practice 2: Copyright © 2013 Kelly Mott

11 Another way to compare fractions is to use the butterfly method and cross multiply. 2 4 3 8 Copyright © 2013 Kelly Mott

12 2 3 5 10 Practice 1: Copyright © 2013 Kelly Mott

13 1 2 3 9 Practice 2: Copyright © 2013 Kelly Mott

14 How did you do? Copyright © 2013 Kelly Mott

15 FOCUS QUESTION: How do we find the fraction with the greatest value in a set? Copyright © 2013 Kelly Mott

16 To find the fraction with the greatest value, you must first make all the fractions have a common denominator. Circle the fraction with the greatest value. 7 10 2 5 Copyright © 2013 Kelly Mott 10 9

17 To find the fraction with the greatest value, you must first make all the fractions have a common denominator. Circle the fraction with the greatest value. 3 8 2 4 Copyright © 2013 Kelly Mott 6 2

18 To find the fraction with the greatest value, you must first make all the fractions have a common denominator. Circle the fraction with the greatest value. 4 6 6 12 Copyright © 2013 Kelly Mott 10 7

19 To find the fraction with the greatest value, you must first make all the fractions have a common denominator. Circle the fraction with the greatest value. 3 10 4 5 Copyright © 2013 Kelly Mott 20 12

20 To find the fraction with the greatest value, you must first make all the fractions have a common denominator. Circle the fraction with the greatest value. 4 6 1 3 Copyright © 2013 Kelly Mott 12 7

21 FOCUS QUESTION: How do we put fractions in order from greatest to least? Copyright © 2013 Kelly Mott

22 To put fractions in order from greatest to least, find the common denominator. Then list from big to small. Order from Greatest to Least: 2 5 1 3 Copyright © 2013 Kelly Mott 10 3

23 To put fractions in order from greatest to least, find the common denominator. Then list from big to small. Order from Greatest to Least: 3 4 5 8 Copyright © 2013 Kelly Mott 2 1

24 To put fractions in order from greatest to least, find the common denominator. Then list from big to small. Order from Greatest to Least: 2 4 2 3 Copyright © 2013 Kelly Mott 12 7

25 FOCUS QUESTION: How do we put fractions in order from least to greatest? Copyright © 2013 Kelly Mott

26 To put fractions in order from least to greatest, find the common denominator. Then list from small to big. Order from Least to Greatest: 4 12 1 3 Copyright © 2013 Kelly Mott 4 3

27 To put fractions in order from least to greatest, find the common denominator. Then list from small to big. Order from Least to Greatest: 4 12 1 3 Copyright © 2013 Kelly Mott 6 5

28 To put fractions in order from greatest to least, find the common denominator. Then list from big to small. Least to Greatest: 3 5 12 20 Copyright © 2013 Kelly Mott 10 5

29 PRACTICE: Word Problems Copyright © 2013 Kelly Mott

30 1. Amys math notebook weighs ½ pound, her science notebook weighs 7/8 pound, and her history notebook weighs ¾ pound. What are the weights in order from lightest to heaviest? Question:Steps: Solve:Answer in Words: Copyright © 2013 Kelly Mott

31 2. Carl has three picture frames. The thicknesses of the frames are 4/5 inch. 3/12 inch, and 5/6 inch. What are the thicknesses in order from least to greatest? Question:Steps: Solve:Answer in Words: Copyright © 2013 Kelly Mott

32 How did you do? Copyright © 2013 Kelly Mott

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