Dividing Fractions & Mixed Numbers Do Now: U2L8 PS12-3 Accurately multiply/divide fractions and decimals. U2L8 PS12-3 Accurately multiply/divide fractions.

Slides:

Advertisements

Similar presentations

Dividing Fractions Lesson 5-3.

Advertisements

Fractions With Like Denominators

FRACTION REVIEW.

Test Review The test will be on the following: Improper to Mixed

Fractions.  The Numerator is the number on top  The Denominator is the number on bottom  The Factors of a number are those numbers that will divide.

Warm-Up. Quote: He _______ has ______ is ______ ______! ~______~

3.4 Dividing Rational Numbers. Multiplicative Inverse Two numbers whose product is 1 Reciprocals.

Multiplying a Fraction and a Whole Number Lesson 6.1.

PRE-ALGEBRA Monday, August 18. LEARNING TARGET I will be able to multiply and divide fractions and mixed numbers.

3.3-Multiplication and Division with Mixed Numbers MATH 081 CATHERINE CONWAY.

Example 3 Dividing Mixed Numbers ÷ – 3 19 = 17 6 – Multiply by the reciprocal of 17 6 – 6 – = 3 () 6 – 19 Use rule for multiplying fractions.

REVIEW: Multiply Fractions with Models

Learning Target: I can divide fractions divide decimals.

Unit 9 Dividing Fractions. Warm-up: 1. ¾ x 2/5 2. 2/3 x 3 ½ 3. 4 ¼ x 2 ½.

Unit 3: Fractions 3.5 – 3.6: Dividing Fractions and Mixed Numbers.

Dividing Fractions and Mixed Numbers Objective: Learn to divide fractions and mixed numbers.

Dividing Fractions SPI Solve problems involving multiplication and division of fractions. SPI Solve multi-step arithmetic problems using fractions,

Warm up # (-24) =4.) 2.5(-26) = 2-7(-8)(-3) = 5.) -5(9)(-2) = 3.

Fraction Multiplication and Division Algebra Seminar

Operations with Fractions. Adding and Subtracting Fractions.

MULTIPLY and DIVIDE RATIONAL NUMBERS. MULTPILYING MIXED NUMBERS 1)Change all Mixed numbers to improper fractions 2)Simplify A) Up and Down B) Diagonally.

Math Vocabulary Review You Can Do It!. What is a prime number?  A number that has only itself and one as its factors.  Which of the following numerals.

4. Check that the answer is reduced: The numerator and denominator should not have any common factors besides 1. When the GCF of the numerator and denominator.

Fraction Operations Review Kerbacher. Simplifying Fractions To simplify a fraction: Find the largest number divides evenly into the numerator and denominator.

Chapter 4 Notes 7 th Grade Math Adding and Subtracting Fractions10/30 2. Find a common denominator 3. Add or subtract the numerators Steps 4. Keep the.

Bell Work!!! a ÷ (b) 2. c × d 3. d ÷ d 4. c × b

Fraction Division Opposite of Multiplication. The opposite number: Invert Called the reciprocal You simply flipped your fraction.

Multiplying/Dividing Fractions Mrs. Matej. Multiplying Fractions – 5 Steps Step 1. Change all mixed fractions to an improper fraction. 3 x = 108.

FRACTIONS & DECIMALS How to add, subtract, multiply, & divide fractions and decimals.

Dividing fractions 4/5 ÷ 7/8 = ?. When you are dividing fractions, invert the divisor. In other words, flip the right fraction. 4/5 ÷ 7/8 8/7= ?

We have: And we take half of it! 1 REVIEW: Multiply Fractions with Models 1.What is one-half of one-third? MORE PRACTICE:

EXAMPLE 1 Dividing a Fraction by a Fraction a = = 3 4 1, or b. – – = = 7 (– 2) 9 – 4 = 1 4 – 2, or.

Dividing Fractions. A. Review  Examples of fractions.

Multiplying and Dividing Fractions PART ONE: PART TWO: Multiplying and Dividing Decimals.

Dividing Fractions and Mixed Numbers

Dividing Fractions. Steps for Dividing Fractions  If there are mixed numbers, change them to improper fractions first.  KEEP the first fraction  CHANGE.

Changed division sign to multiplication sign When Dividing Fractions, always remember to: FLIP SWITCH MULTIPLY Since both 10 and 12 are divisible by 2,

Notice anything interesting?

Multiplying and Dividing of Fractions. How to Find a Fraction of a Fraction The first thing to remember is “of” means multiply in mathematics. of = x.

1. Flip over 2nd fraction (reciprocal) 2. keep 1st fraction the same 3. change ÷ to an X 4. multiply 5. reduce.

Dividing with Fractions. Models If one and ¾ pizzas are cut into ¼ sections, how many people will receive a share? 1 whole ¾ Since there are 7 equal quarters,

Review of Fractions. Important Notes Leave all answers in “simplest form” No common factors in the numerator and denominator Use proper or improper fractions.

Dividing Fractions.

5.4 Dividing Fractions and Mixed Numbers

+ Fractions. + Part of a whole + + Numerator How many pieces The number on the top of a fraction.

3 3 x =5 When you see a Multiplication problem, you can use the DIVISION Property of Equality to solve it! Remember – a FRACTION means to divide! CHECK.

Multiply and Divide Fractions and Decimals. Mixed Numbers, Improper Fractions, and Reciprocals Mixed Number: A number made up of a fraction and a whole.

Multiplying With Fractions

Adding, Subtracting, Multiplying and Dividing Fractions Review

Dividing Fractions.

Multiplying & Dividing Fractions Review

Bear Time 10/20/14 .

Multiplication and Division of Fractions and Decimals

Dividing Fractions Lesson 5-9.

Fractions Write a Decimal as a Fraction

Change to Mixed Number---7/4

Warm-up: Find each quotient.

Section 1.3 Fractions.

MULTIPLYING FRACTIONS AND MIXED NUMBER

Multiplying and Dividing Fractions

Multiplying With Fractions

Dividing Fraction and Whole number

Multiplying/Dividing Fractions

Dividing Fractions and Mixed Numbers

Aim: How do we divide fractions?

Dividing Fraction Mr. Hickey.

Dividing Fractions.

Dividing Fractions.

Multiplying and Dividng Fractions

Presentation transcript:

Dividing Fractions & Mixed Numbers Do Now: U2L8 PS12-3 Accurately multiply/divide fractions and decimals. U2L8 PS12-3 Accurately multiply/divide fractions and decimals.

Fractions To divide fractions, multiply by the reciprocal Remember : KEEP, CHANGE, FLIP ▫Keep the first number as it is ▫Change the operation from DIVISION to MULTIPLICATION ▫Flip the second number upside down Then multiply fractions as usual Simplify if necessary

Examples

Dividing Mixed Numbers Change mixed number to an improper fraction Then KEEP, CHANGE, FLIP Multiply as usual ▫(top times top, bottom times bottom) Simplify if necessary

A whole number divided by a fraction Khan Academy video example Question to think about during video: What do you do with a whole number when multiplying it with a fraction?

Guided Practice 4 minutes to try the following problems ÷÷

Assignment P #8-21, 25-31, 38-42