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NS 4.1 Recognize, name, and compare unit fractions from !
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12 to 2 .
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UNDERLYING SKILLS AND CONCEPTS:
concept of fractions;
reading and writing fractions
Compare Non-Unit Fractions
a
K
ey Ide
To compare fractions, the fractions must have the same
denominator. Then you compare the numerators.
The fraction with the greater numerator is more.
E x am p l E
3
There is ! of a mushroom pizza left.
4
2
There is ! of a pepperoni pizza left.
4
B – © CSL Associates, Inc. All rights reserved.
Which kind of pizza has more left?
3
4
2
4
3
2
Compare ! and ! .
4
4
3
2
To compare ! and ! , compare 3 and 2.
4
4
3 " 2, so
3
2
! " !
4
4
Chapter 20 – Lesson 4
page 237
Name
P RAC T I C E
Use the pictures to compare the fractions. Use < or >.
1
2
3
6
5
6
2
6
3
5
4
5
4
3
8
2
8
Compare the fractions. Use < or >.
5
4
8
6
8
Math
Reasoning
8
6
4
6
3
6
7
3
8
5
8
Compare Fractions
MR 1.2
How does a picture help you compare two fractions?
I can tell by looking at the picture
which fraction is more.
page 238
Chapter 20 – Lesson 4
B – © CSL Associates, Inc. All rights reserved.
3
4
6
Name
P RAC T I C E
Use the pictures to compare the fractions. Use < or >.
1
2
2
6
4
6
5
6
4
5
2
5
4
4
8
8
2
Compare the fractions. Use < or >.
5
3
6
1
6
Math
Reasoning
8
6
3
8
1
8
7
2
3
3
3
Compare Fractions
MR 1.2
3 and 5 ?
How can you draw a picture to help you compare 8
8
Possible answer: I can draw 2 rectangles and divide
each one into 8 equal parts. Then I shade 3 parts of
one rectangle and 5 parts of the other. Then I compare
the shaded parts.
page 160
Home Resource and Homework
Chapter 20 Lesson 4
B – © CSL Associates, Inc. All rights reserved.
3
2
6
MCX94TEG2Ch01_30.v9.4.1 2/19/01 19:51 Page 437
Name
P RAC T I C E
Use the pictures to compare the fractions. Use < or >.
1
2
3
6
5
6
3
2
6
3
5
4
5
4
3
8
B – © CSL Associates, Inc. All rights reserved.
4
6
8
2
Compare the fractions. Use < or >.
5
4
8
6
8
Math
Reasoning
8
6
4
6
3
6
7
3
8
5
8
Compare Fractions
MR 1.2
How does a picture help you compare two fractions?
I can tell by looking at the picture
which fraction is more.
Chapter 20 – Lesson 4
Student Book Page
page 238
Name
P RAC T I C E
Use the pictures to compare the fractions. Use < or >.
1
2
2
6
4
6
5
6
4
5
2
5
4
4
8
8
2
Compare the fractions. Use < or >.
5
3
6
1
6
Math
Reasoning
8
6
3
8
1
8
7
2
3
3
3
Compare Fractions
MR 1.2
3 and 5 ?
How can you draw a picture to help you compare 8
8
Possible answer: I can draw 2 rectangles and divide
each one into 8 equal parts. Then I shade 3 parts of
one rectangle and 5 parts of the other. Then I compare
the shaded parts.
page 160
Home Resource and Homework
Chapter 20 Lesson 4
B – © CSL Associates, Inc. All rights reserved.
3
2
6