Ratios
There are 10 white marbles and 3 blue marbles. What is the ratio of white to blue marbles?
10:3
Write the following ratio simplified (hint some ratios can't be simplified): 4 / 6
2 / 3
The ratio of boys to girls is 1:2, if there's 12 boys how many girls are there?
24
What is the missing term that will make the ratios equivalent? 2 : 4 = ____ : 32
16
Fill in the blank:
A ratio is a _____________ of two quantities.
Comparison
Who lives in a pineapple under the sea?
SPONGEBOB SQUAREPANTS
There are 27 white marbles and 13 blue marbles. What is the ratio of white to all marbles?
27:40
Write the following ratio simplified (hint some ratios can't be simplified): 10 / 20
1 / 2
List the three ways to write a ratio.
colon, to, fraction
How many planets are in our solar system (Bonus 100 if you can write them all)?
8 (Mercury, Venus, Mars, Earth, Jupiter, Saturn, Uranus, Neptune)
There are 2 red blocks, 3 orange blocks, and 4 black blocks. What is the ratio of all to black blocks?
9:4
Write the following ratio simplified : 44 / 11
4/1
I am a world class pizza chef. Every 30 minutes I can make 7 pizzas. How many can I make in 2 and a half hours?
35 pizzas
Write 2 equivalent ratios to 1 / 3.
Many answers are possible
How to determine if two ratios are equivalent?
Simplify both ratios. If they have the same value, they are equivalent.
OR
Scale factor. If they have the same scale factor (multiply or divide by same number for both quantities of ratio), they are equivalent
What is a group of lions called?
A pride
There are 2 red blocks, 3 orange blocks, and 4 black blocks. What is the ratio of red and orange blocks to black blocks?
5:4
Write the following ratio simplified (hint some ratios can't be simplified): 4000 / 5000
4 / 5
If it takes 8 cups of flour for every 2 tsp of baking soda to bake a cake, how many cups of baking soda would I need for 4 cups of flour?
1 tsp
What is the missing term that will make the ratios equivalent?
10 / 13 = ____ / 52
40
Are the two ratios equivalent? 56:8 and 14 :2
Yes
Solve:
123 x 123
15,129
TRUE or FALSE: You can always make equivalent ratios by adding or subtracting the same number on both parts of a ratio.
False
It costs 36 dollars to buy 12 hamburgers. What is the price for just one hamburger? Simplify the ratio to find out.
Each burger costs 3 dollars. 36:12 simplifies to become 3:1.
In order to make a perfect cake you need exactly 72 sprinkles for every 6 ounces of cake(this is a proven fact). If I were to make a cake that was 4 ounces and 52 sprinkles, would my cake have too many, too few, or just the right amount of sprinkles?
Too many. The ratio of 72:6 reduces to 12:1. If we have a 4 ounce cake, we multiply our ratio by 4 -> 48:4. Since we have 4 ounces and 52 sprinkles, we have the ratio 52:4, which is too many.
Write 2 equivalent ratios to 8/ 9.
Answers Vary
Are the two ratios equivalent? 18:4 and 14 : 3
NO
When solving ratio or rate problems, when in doubt, what should you do?
TABLE IT OUT!