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
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
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
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
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.
Is the ratio of 5:8 equivalent to 62.5:100
Yes 5 and 8 are multiplied by 12.5 to get 62.5 and 100
Write 2 equivalent ratios to 8/ 9.
Answers Vary
Are the two ratios equivalent? 18:4 and 14 : 3
NO