Fraction Concepts
The TOP number of a fraction is called this.
What is a numerator?
1/2 * 3/4
What is
3/8
1/5 -: 3/4
What is
4/15
A comparison of two or more things
What is a ratio?
A bakery sells six cookies for every one cake. This is the ratio of Cookies to Cakes.
What is 6:1?
The BOTTOM number of a fraction is called this.
What is a denominator?
3/4 * 1/4
What is
3/16
5/6 -: 4/3
What is
15/24
This is a definition of a ratio.
What is, "A comparison of two or more things"?
In a math class for every 4 people who got an "A", 3 people got a "B". What is the ratios of A to B?
What is 4:3?
What is denominator?
4/5 * 5/4
What is 1?
or
20/20
2/3 -: 1/2
What is
4/3 or 1 1/3
This is what it is called when a 10:20 ratio uses lower numbers to show the same value at a 1:2 ratio.
What is simplifying?
In a bag of Halloween candy there were 3 Snickers, 2 Kitkats, 1 Almond Joy, 5 Skittles and 2 Razor Blades. What is the ratio of Almond Joy to Snickers?
When MULTIPLYING fractions the technique is to do this.
What is multiply straight across? (Numerator multiples with numerator; denominator with denominator)
Simplify your answer.
1/2 * 4/8
What is
1/4
Simplify your answer
1/2 -: 3/4
What is
2/3
If there are 2 cats for every 3 dogs, which number should go first if the question asks for the ratio of DOGS to CATS?
What is 3 or 3:2?
Simplify your answer:
On my pizza for every 30 anchovies, there are 15 pieces of pineapple. This is the ratio of anchovies to pineapple?
What is
2/1
When DIVIDING fractions; DON'T DIVIDE. Instead you should use this technique.
What is Keep, Change, Flip.
Simplify your answer
5/6*3/5
What is
1/2
Simplify your answer
7/8 -: 5/4
What is
7/10
These are two other way ways one might write a ratio of 4 to 5.
What is: 4:5 and
4/5
Simplify your answer
On my sandwich for every 4 ounces of peanut butter I have 6 ounces of tuna. This is the ratio of TUNA to PEANUT BUTTER?
What is
3/2