Definitions/Rules
Dividing Fraction Steps
Dividing Whole #s and Fractions
Dividing fractions by fractions
Fractions
100
The bottom number of a fraction is called...
What is denominator
100
If you are dividing mixed numbers, what should you do?
Convert to improper fractions, then divide (KCF)
100
1/2 ÷ 4
1/8
100
1/2 ÷ 1/3 - Simplest form
3/2 = 1 1/2
100
Without computing, decide whether the value of each expression is much smaller than 1, close to 1, or much larger than 1. Explain your reasoning.
5 ÷ 1/2
2/5 ÷7
25 1/4 ÷ 24 3/3
much larger than 1
much smaller than 1
close to 1
200
The top number of a fraction is called...
What is the numerator
200
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
200
3 ÷ 1/3
9
200
1/3 divided by 4/5
5/12
200
How many 2/5 s are in 6? Use the tape diagram to support your answer.
There are 15 2/5's in 6.
300
The three steps used when dividing fractions?
What is Keep, Change, flip (KCF)
300
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
300
1/3 ÷ 4
1/12
300
4/7 ÷ 2/3 - Simplest Form
12/14 = 6/7
300
How many 3/4 s are in 5? Use the tape diagram to support your answer.
There are 6 and 2/3's in 5.
400
What do you do when dividing whole numbers by fractions?
Put the whole number over 1 then divide (KCF)
400
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal or flip it
400
2 ÷ 1/4
8
400
5/9 ÷ 1/2 - Simplest Form
10/9 = 1 1/9
400
Alexis is making smoothies for a school event. She plans to sell them in cups. If the blender hold 30 1/2 cups of smoothie mix, describe two different ways to interpret 30 1/2 ÷ 3 in this context.
Answers vary
500
What is the term used to describe the fraction that is "flipped" in KCF?
What is Reciprocal?
500
What does it mean to simplify a fraction?
Putting a fraction in its simplest, lowest form
500
1/4 ÷ 2
1/8
500
1/4 ÷ 5/4
4/20 = 1/5
500
After running for 5/6 of an hour, JoJo is 1/3 of the way through their run. How long will it take JoJo to finish their run if they continue at the same pace? Use a tape diagram to solve. Write a multiplication equation and a division equation for the situation, then answer the question. Show your reasoning.
It will take JoJo 2 1/2 hours to finish their run.