Definitions/Rules
The bottom number of a fraction is called...
What is denominator
If you are dividing mixed numbers, what should you do?
Convert to improper fractions, then divide (KCF)
A cookie factory uses 1/10 of a barrel of oatmeal in each batch of cookies. The factory has 1/5 of a barrel of oatmeal. How many batches of cookies can the factory make?
2
1/2 ÷ 1/3 - Simplest form
3/2 = 1 1/2
1 2/3 ÷ 3 1/3
1/2
The top number of a fraction is called...
What is the numerator
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
A bakery uses 2/3 cup of chocolate chips for each batch of cookies. If they have 2 1/4 cups of chocolate chips, how many batches can they make?
3 3/8
1/3 divided by 4/5
5/12
2 1/4 ÷ 1 1/2
1 1/2
The three steps used when dividing fractions?
What is Keep, Change, flip (KCF)
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
The camp cook made 2 1/2 pints of baked beans. Each serving of beans is 1/2 of a pint. How many servings of beans did the cook make?
5
4/7 ÷ 2/3 - Simplest Form
12/14 = 6/7
10 1/2 ÷ 1 2/3
6 3/10
What do you do when dividing whole numbers by fractions?
Put the whole number over 1 then divide (KCF)
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal or flip it
Russell ran 2 2/3 miles around the track. Each lap is 2/3 of a mile. How many laps did Russell run?
4
5/9 ÷ 1/2 - Simplest Form
10/9 = 1 1/9
8 3/4 ÷ 2 2/5
3 31/48
What is the term used to describe the fraction that is "flipped" in KCF?
What is Reciprocal?
What does it mean to simplify a fraction?
Putting a fraction in its simplest, lowest form
5/18
1/4 ÷ 5/4
4/20 = 1/5
9 1/2 ÷ 9 2/3
57/58