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

Comparing and Order Fractions with Unlike

Denominators

Comparing FractionsPart 1: ReviewPart 2: Lesson

REVIEW

FOCUS QUESTION: What symbols do we

use when we compare fractions?

Symbols

means ______________________.

FOCUS QUESTION: How do we compare

fractions with different denominators?

• There are two ways to compare fractions with different denominators.

• If fractions do not have the same denominators, we need to find a common multiple and multiply to get the bottoms the same.

4 3 8 4

Practice 1:

2 1 3 6

Practice 2:

• Another way to compare fractions is to use the butterfly method and cross multiply.

2 3 5 10

Practice 1:

1 2 3 9

Practice 2:

How did you do?

FOCUS QUESTION: How do we find the fraction with the greatest value

in a set?

• 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.

FOCUS QUESTION: How do we put fractions in order from greatest to

least?

• To put fractions in order from greatest to least, find the common denominator. Then list from big to small.

• Order from Greatest to Least:

FOCUS QUESTION: How do we put fractions in

order from least to greatest?

• To put fractions in order from least to greatest, find the common denominator. Then list from small to big.

• Order from Least to Greatest:

• To put fractions in order from least to greatest, find the common denominator. Then list from small to big.

• Order from Least to Greatest:

• Least to Greatest:

PRACTICE: Word Problems

1. Amy’s 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:

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:

How did you do?

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

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