Ratios
There are 10 white marbles and 3 blue marbles. What is the ratio of white to blue marbles?
10:3
Mia and Mals had some money in the ratio 6:1. Mia gave half of her money to Mals. Find the ratio of the amount of money Mia had left to the amount of money Mals had in the end.
3:4
60 students are in grade 1, but only 30 students are in kindergarten. What is the ratio of grade 1 students to kindergarten students?
2:1
What is the missing term that will make the ratios equivalent? 2 : 4 = ____ : 32
16
A recipe for lemonade says to use 8 cups of water and 6 lemons. If you reduce the recipe and use 4 cups of water, how many lemons will you need?
3 lemons
18:3
6:1
There are 27 vanilla cupcakes and 13 chocolate cupcakes. What is the ratio of vanilla to total cupcakes?
27:40
Mia has some yellow and orange skittles in a bag. The ratio of the number of yellow to orange is 2:1 She adds 12 more orange skittles to the bag and the ratio becomes 4:5. How many yellow skittles are there now?
4x4=16
12 students play on the school's basketball team and 36 students play on the football team. What is the ratio of basketball players to football players?
1:3
Write 2 equivalent ratios to 1/2.
Many answers are possible
The ratio of students with blond hair to students with brown or black hair is 1:2. If there are 212 students with brown or black hair, how many students have blond hair?
106
24:18
4:3
There are 2 fiction books, 3 nonfiction books, and 4 mysteries. What is the ratio of all books to mysteries?
9:4
The ratio of the number of books that Mia had to the number of books that her cousin had was 1:2. After Mia checked out 24 new books from the library, the ratio became 2:1. How many books did Mia have to start?
8 books
Every 30 minutes, a pizza chef makes 7 pizzas. How many pizzas can the chef make in 2 and a half hours?
35 pizzas
Write 2 equivalent ratios to 2 / 3.
Many answers are possible
A shopper bought 6 ears of corn at the farmer’s market for $1.80. What was the cost per ear?
30¢ per ear
30:9
10:3
There are 12 regular scooters, 13 electric scooters, and 50 hoverboards. What is the ratio of scooters to hoverboards
25:50
Simplified
1:2
Mia has some yellow and orange skittles in a bag. The ratio of the number of yellow to orange is 2:1 She adds 12 more orange skittles to the bag and the ratio becomes 4:5. How many yellow skittles are there now?
5x4=20 orange Skittles
A recipe for cinnamon rolls uses 2 tablespoons of sugar per teaspoon of cinnamon for the filling. How much sugar and cinnamon would you need for 3 batches?
6 tablespoons sugar
3 teaspoons cinnamon
What is the missing term that will make the ratios equivalent?
10 / 13 = ____ / 52
40
While playing basketball, Jada’s heart rate goes up to 160 beats per minute. While jogging, her heart beats 25 times in 10 seconds. Assuming her heart beats at a constant rate while jogging, which of these activities resulted in a higher heart rate? Explain your thinking.
Basketball because while jogging, her heart rate goes up to 150 beats per minute.
42:20
21:10
There are 16 hats, 14 scarves, and 18 coats hanging on the coat rack. What is the ratio of coats and hats to all items?
34:48
Simplified
17:24
Mia has some yellow and orange Skittles in a bag. The ratio of the number of yellow to orange is 2:1 She adds 12 more orange skittles to the bag and the ratio becomes 4:5. How many orange Skittles does Mia have in the end?
2
For every 7 donuts there are 3 brownies at a bakery. How many brownies are there for 49 donuts?
21
Write 2 equivalent ratios to 8/9.
Answers Vary
At school recess, there needs to be a ratio of 2 adults for every 24 children on the playground. If there are 96 children, how many adults should there be?
8 adults
50:12
25:6