Ratio Notation

Eli has 7 games on his phone. His sister has 6 more than him. Which ratio compares the number of games on Eli’s phone to the number of games on his sister’s phone?

• 6:13

• 7:13

• 6:7

• 7:6

Justin and Desiree each wrote a ratio comparing the numbers of students and tables in their classroom. There are 6 tables in the room with 4 students at each table. Justin states that the ratio is 4:1. Desiree insists the ratio is 24:6. They both ask Luke to tell them which ratio is correct. Which statement below would be the best answer for Luke?

• Justin is correct because there are 4 students per table. A ratio is not correct unless it uses the smallest possible numbers.

• Desiree is correct because there are 24 students to 6 tables in the room. A ratio must account for the total number of each value.

• Both are correct. Desiree’s ratio compares the total number of students in the room to the total number of tables, while Justin’s is equivalent but simplified to students per table.

• Neither is correct because they should have 4:6 or 2:3 for the 4 students and 6 tables.

Mrs. Rodriquez has 24 students in her class. Ten of the students are boys. Jeff claims that the ratio of boys to girls in this class must be 5:12. What is Jeff’s error and how can he correct it?

• Jeff found the ratio of the number of boys to the total number of students. He needed to first find that there are 14 girls to get a ratio of 10:14 or 5:7.

• Jeff found the ratio of the number of boys to the total number of students. He needed to first find that there are 14 girls. The ratio would be 14:10 or 7:5.

• Jeff did not write the ratio in the correct order. He should have written it as 24:10.

• Jeff did not write the ratio in the correct order. He should have written it as 12:5.

Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students?

• 1:3

• 1:2

• 2:3

• 2:1

A community garden contains five types of plants. Two of the types are flowers: roses and daisies.The other three types are vegetable plants: cucumbers, bell peppers, and green beans.

Which statement is true?

• The ratio of cucumber plants to flowers is 1:1.

• The ratio of daisy plants to rose plants is 1:2

How could you write a ratio to represent 4 apples compared to 3 bananas?

• 4:3

• 4/3

• For every 4 apples, there are 3 bananas.

• 4 apples to 3 bananas.

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games. What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3

At the library you borrow 4 fiction books and 7 non-fiction books. What is the ratio of non-fiction books to fiction books?

• 2:3

• 3:2

• 4:7

• 7:4

The value of the ratio 8:2 is

• 4

Which ratio represents the relationship of bananas to apples?

• 3:8

• 8:3

• 3:2

• 2:3