Multiplying Fractions
Dividing Fractions
Multiplication and Division Story Problem Tips
Dividing Fractions Story Problems
Multiplying Fractions Story Problems
100
When multiplying fractions what is the first step you need to take?
Reduce diagonally.
100
When dividing fractions what is the first thing you should do?
Copy Dot Flip.
100
What does of mean?
To multiply.
100
James has 1/3 of a melon. He shares it among himself and two friends. What fraction of a melon will each friend get?
1/9 of a melon.
100
Ken uses 1/4 feet of ribbon to decorate a package. How many feet of ribbon does he uses to decorate 12 of these packages?
3 feet of ribbon
200
When multiplying mixed numbers what is the first step you need to take?
Make them into an improper fraction.
200
What does Dot mean in Copy Dot Flip?
To change the division sign to multiplication.
200
If you see the word "left" in a story problem what should you do?
For instance:How much clay is left?
Subtract.
200
Jett has 9 yards of cloth. He wants to cut it into pieces that are 1/3 yards long. How many pieces can he cut from the length of the cloth?
27 pieces.
200
Tasha finished a job in 3/4 of an hour. Megan finished it in 4/5 of the time Tasha took. How long did Megan take to finish the job?
Megan took 3/5 of an hour to finish the job.
300
What do you need to do to the whole number if you are multiplying by one.
Put the whole number over 1. So 4 would be, 4/1.
300
Divide 3/4
5.
3/20.
300
What is the first thing you should do after you read a story problem?
Underline the important pieces of information. (numbers and the questions)
300
Eden has 12 pounds of flour. She uses 8 pounds for a recipe. She gives 1/2 of a pound to each of her neighbors. How many neighbors does Eden have if she doesn't have any flour left over?
8 neighbors.
300
At a party there are 8 guests. Each guest eats 2 1/4 popcorn balls. How many popcorn balls do teh 8 guests eat?
18 popcorn balls.
400
What is the last step you should always do when multiplying fractions?
Simplify.
400
12 3/7 =
28
400
What 2 things should you do to your answer to a story problem?
Label and circle it!
400
Mary spends 1/6 of an hour to make 1 friendship bracelet. She spends 3 hours before lunch and 2 hours after lunch making the bracelets. How many bracelets does she make in all?
3+2= 5
5 1/6= 30
Mary made 30 bracelets.
400
Joanne earns $720 a week. She spends 1/3 of her money on groceries and 3/4 of the remaining money on rent. How much money does she spend on rent and groceries?
She spends $600 on rent and groceries.
500
Multiply 2 1/12 by 4.
8 1/3
500
What are the 4 steps to dividing fractions? They must be in order.
1. Copy Dot Flip
2. Reduce Diagonally
3. Multiply Straight Across
4. Simplify your answer.
500
What is one way you can CHECK your answer to a story problem?
Draw a model.
500
A square foot of wall space needs 1/8 quart of paint. Terrence has 7 quarts of paint, but uses 2 quarts to paint a pipe. How many square feet of wall can be painted with the rest of the paint?
7-2= 5
5 1/8= 40
He can paint 40 square feet.
500
Victoria has a 2 pound package of flour. She uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express your answer as a decimal.
She has .84 pounds of flour left.