Multiplying and Dividing Fractions

 The Common Core State Standards covered in Unit 5  are: Add and subtract fractions with unlike denominators, including mixed number Multiply a whole number by a fraction  Multiply a fraction by a fraction Solve story problems involving multiplying a whole number of a fraction by a fraction Demonstrate that an area of a rectangle with fractional side lengths can be found through tiling or by multiplying side lengths Represent the product of two fractions as an array whose dimenstions are the two frations being multiplied Compare the size of a product to the size of one of its factors on the basis of the size of the other factor, without performing the indicated multiplication Explain why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; explain why multiplying a given number by a fraction greater than 1 results in a product greater than the given number Divide a unit fraction by a whole number; use a visual model to represent the division of a unit fraction by a whole number Divide a whole number by a unit fraction; use a visual model to represent division of a whole number by a unit fraction Solve story problems involving division of a unit fration by a whole number; and division of a whole number by a fraction

 Gary Paulsen was treating his dogs to pie, before he learned they shouldn't eat that. He had 1/3 of a pie left and then cut it into 4 equal pieces to give to Storm, Fred, Fonzie, and Cookie. How much of the original pie did each dog get?

 Hawk is getting a new pen. It is rectangular in shape and measures 1 3/4 yards long and 1/2 yard wide. Hawk wants at least one square yard of pen. Did Hawk get her wish?

 Gary had a 9 yard long rope for one of his traplines. How many pieces of rope can he cut from that piece if he wants each piece to be 1/3 yard long?

 Gary's wife is making a sign to encourage him in the Iditarod. The sign is 1 1/3 yards wide by 2 1/3 yards long. What is the area of the sign that Mrs. Paulsen makes for Gary?

 Gary made a cushion for Storm. The cushion is 3/4 yard long and 5/6 yard wide. What is the area of the cushion?

# All members of the dog club voted for their favorite dog. Half voted for Storm, 1/4 voted for Cookie, 1/8 voted for Fonzie, 1/16 voted for Olaf, and the rest voted for Fred. If 2 members voted for Fred, how many students belong to the dog club? When Gary tests drives a sled, he does 1/5 backwoods sledding, 1/5 frozen lake sledding, and 3/5 sledding around his house. If he sleds for 12 1/3 miles, how many miles are sledding around his house? Decide true or false for each of the following statements. * MEANS TO MULTIPLY  3/4 * 5/12 = 5/16 7/8 * 4/5 = 11/40 5/6 * 4/7 = 10/21 1/3 * 2/3 = 2/6 3/5 * 1/3 = 1/5  2/3 * 3/8 = 6/11 3/4 * 3/9 = 1/4  5/8 * 2/5 = 7/13 Use the fractions in the table to answer questions 1-4. Find two fractions to fit each description. 1/2    1/3    1/4    2/3    3/4 The product is 1/8, and the sum is 3/4. Both the product and the difference are equal to 1/12. The product is 1/2, and the difference is 1/12. The product is 1/6, and the sum is less than 1.

 Multiplying Fractions

 Estimating Estimating products-whole numbers and unit fractions Estimating products-whole numbers and fractions Scaling Fractions and Whole Numbers Scaling fractions with fractions Scaling whole numbers with fractions Multiplying Fractions and Whole Numbers Multiply fractions and whole numbers I Multiply fractions and whole numbers II Multiply whole numbers and fractions-word problems Multiplying Fractions Multiply two fractions Multiply two fractions-word problems Multiply three or more fractions by fractions

 Multiply fractions-online practie Multiplying fractions and whole numbers

 How to multiply fractions How to multiply mixed fractions Multiply fractions and whole numbers-online practice Multiply fractions-online practice Multiply fractions word problems

 Dividing Fractions

 Divide a unit fraction by a whole number Divide whole numbers by unit fractions Divide fractions by whole numbers Divide unit fractions by whole numbers-word problems Divide whole numbers by unit fractions using models Divide whole numbers by fractions

 Divide fractions by whole numbers-aaamath.com Divide fractions by whole numbers-mathisfun.com Divide whole numbers by fractions-mathgames.com Divide fractions by whole numbers-mathgames.com Divide fractions by whole numbers-problem solving

 Area with Fractions

 How to find the area of a rectangle using fractions-VIDEO Practice finding the area of a rectangle from Khan Academy Practice finding the area of rectangles-no fractions-game format

 Unit 5 Games

 Multiplying fractions-Math Soccer Multiplying fractions-Millionaire Game Fraction Jeopardy-all operations in this game Can you multiply these?  From KIDSMATHTV Dividing fractions basketball-challenging Play fraction/decimal concentration game Soccer Shootout-set games for fractions and set the difficulty

# Daily Sudoku for Kids Brain Benders Play Rags to Riches Ninja Primes and Composites The Train Race Online Mankala Who Wants to Win \$1,000,000.00? Math Hunt Family Math Challenges  What's the Best Way to get Paid?  Mystery Math Coin Flipping

 Links to the math sites that we love!