At lunch in the cafeteria, one hundred students bought chocolate milk and fifty students bought regular milk. What is the ratio of students who bought regular milk to the students who bought chocolate milk?

Sam had 50 marbles in a bag. Twelve were red, ten were blue, thirteen were white, and the rest were black. What is the ratio of black marbles to total marbles in the bag?

The ratio of red markers to black markers is 3:2. Which ratio also means 3:2? Choose all that apply.

Adam had a box of 10 sports balls in his closet. Seven of them were footballs and the rest were basketballs. What is his ratio of basketballs to footballs in his closet?

There are eleven blue crayons and eight purple crayons in a box. What is the ratio of purple crayons to blue crayons?

A local animal shelter has 24 cats and 12 dogs in their care. What is the ratio of cats to dogs in the shelter?

Katie has 8 black puppies, 4 white puppies, and 2 brown puppies to give away. What is the ratio of all the puppies she had to give away to white puppies she had to give away?

In Janice’s class there were 16 boys and 6 girls. What is the ratio of all the students in the room to boys?

What is a ratio?

How can equivalent ratios be created?