Comparing and Ordering Fractions

Slides:

Advertisements

Similar presentations

Lesson 4-4 Example Example 1 1.Change each decimal to a fraction. Order, 0.5,, and –0.8 from least to greatest. Graph the numbers on a number line.

Advertisements

To compare fractions you can draw a picture or use the “Butterfly” method.

Adding and subtracting fractions  Adding and subtracting fractions with the same, or common, denominator  Adding and subtracting fractions with different.

EXAMPLE 1 Writing Equivalent Fractions. EXAMPLE 1 Writing Equivalent Fractions Write two fractions that are equivalent to. Writing Equivalent Fractions.

EXAMPLE 1 Comparing Fractions Using the LCD SOLUTION Find the least common denominator of the fractions. The LCM of 8 and 12 is 24, so the least common.

Lesson 1-2 Example Example 2 Find the unit rate for selling 400 tickets in 5 days. Use the unit rate to find the number of tickets sold in 4 days.

Equivalent Ratios and Rates

Simplifying Fractions 3-5. Lesson 1 – Equivalent Fractions I can use multiples to write equivalent fractions. I can use factors to write equivalent fractions.

Integers: Comparing and Ordering

PAPER GAMEPAPER GAME. Numerator Denominator.

Which is greater, or ? Comparing and Ordering Rational Numbers COURSE 3 LESSON Rewrite each fraction with the denominator 9 11 = 99. Multiply.

ORDERING NUMBERS REVIEW. How do we compare decimals? Order from least to greatest: 0.6, 0.57, 0.62, Line up the decimal points vertically and compare.

Multiplying Fractions A Visual Lesson. When you multiply two numbers, do they always get larger? Are you sure?

Operations with Fractions. Adding and Subtracting Fractions.

Comparing Fractions with the same Denominators

Created by Leslie Fenton.  Make sure the denominators are the same.  If the denominators are not the same, then rewrite the fractions using a common.

a. The LCM of 4 and 5 is 20, so the LCD is 20.

I will be able to add and subtract fractions. Adding and Subtracting Fractions Learning Target.

Adding and Subtracting Unlike Fractions Lesson 4-3.

How to multiply a whole number by a fraction.

2.1 Ordering Rational Numbers from Least to Greatest.

Confidential1 COMPARING AND ORDERING FRACTIONS. confidential2 revision Replace each * with a number so that the fractions are equivalent. 1 = *-5 3 =

Lesson 4-3. Rewrite the problem with equivalent fractions List the multiples of both denominators. Find the least common multiple (LCM). Write new fractions.

Lesson 2-4 Example Find the LCM of 5, 9, and 15. Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, … Multiples of 9: 9, 18, 27, 36, 45, 54,

Comparing and Ordering Fractions. Strategy Make sure the denominators are the same. Compare the numerators. If the denominators are not the same, then.

3-5 Adding and Subtracting Fractions Warm Up Find the LCM for each set of numbers and and and and 24 Example: 2 and 7.

Warm Up Write each fraction as a decimal. Homework- Page 74 # 1-26 all

11.5 Adding and Subtracting Rational Expressions

Adding and Subtracting Unlike Fractions

Find the common denominator. Make equivalent fractions.

Adding and Subtracting Unlike Fractions

Fraction Jeopardy LCM GCF $100 $200 $300 $400 $500 $600 $700 Add it up

< Lesson 2.6 Concept: How to compare and order fractions

Applying GCF and LCM to Fraction Operations

Fractions Any fraction can be written in many ways and still have the same value… …are all the same… 0.5.

Convert each fraction to a decimal

Comparing and Ordering Fractions

Adding and Subtracting Fractions

Comparing & Ordering Fractions.

Comparing & Ordering Fractions.

Prime Factorization: The prime factorization of a number is the product of all of the prime numbers that equals the number.

Warm up A. B. C. D..

Convert each fraction to a decimal

Percents, Fractions, and Decimals

Warm up A. B. C. D..

Fraction X Adding Unlike Denominators

Equivalent Fractions: Ordering Fractions by Making Common Denominators

Fraction X Adding Unlike Denominators

Comparing & Ordering Fractions.

Fraction X Adding Unlike Denominators

Comparing & Ordering Fractions.

Comparing & Ordering Fractions.

Simplifying Rational Expressions

Equivalent Fractions: Creating Common Denominators

Equivalent Fractions Lesson 3-4.

Subtracting Like and Unlike Fractions

Fraction IX Adding Unlike Denominators

Comparing & Ordering Fractions.

Comparing and Ordering Rational Numbers

Subtracting Like and Unlike Fractions

Fraction X Adding Unlike Denominators

Ordering fractions.

Comparing and Ordering Rational Numbers

Making Equivalent Fractions.

Which fraction is the same as ?

Comparing & Ordering Fractions.

Fraction X Adding Unlike Denominators

Fraction X Adding Unlike Denominators

Fraction X Adding Unlike Denominators

Comparing & Ordering Fractions.

Presentation transcript:

Comparing and Ordering Fractions Lesson 3-7

Strategy Make sure the denominators are the same. Compare the numerators. If the denominators are not the same, then rewrite the fractions using a common denominator. The new fractions should be equivalent to the original fractions.

Writing Equivalent Fractions One way to find a common denominator is to multiply the two original denominators. 5 3 > 4 6 6 x 4 = 24 20 > 18 x 4 x 6 20 18 24 24

Another way to compare fractions is to find the LCM of both denominators. Use the LCM as the new denominator in the equivalent fractions. 7 5 < 9, 18, 27, 36, 45 9 12 12, 24, 36, 48, 60 20 < 21 x 3 x 4 20 21 36 36

Ordering Fractions Find the LCM of the denominators. Use the LCM to write equivalent fractions. Put the fractions in order using the numerators.

Example - Order from Least to Greatest: 3 2 1 8 5 4 x 8 x 5 x 10 15 16 10 40 40 40 8, 16, 24, 32, 40, 48 1/4 < 3/8 < 2/5 5, 10, 15, 20, 25, 30, 35, 40 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

Homework Time