Ratios and Proportional Relationships

Which of these could you represent with a ratio?

• • A

    how many diet sodas there are in the fridge compared to how many regular sodas

• • B

    the average age of writers for a newspaper

• • C

    the maximum number of people that can fit inside an elevator

• • D

  • how many square feet of carpet are needed to completely cover the floor

The ratio of meatballs to the total number of toppings on a pizza is 2:5. Can this be thought of as a fraction?

• • A

    No because ratios can never be thought of as fractions.

• • B

    No because it’s a part-to-part ratio, and not a part-to-whole.

• • C

    Yes because it’s a part-to-whole ratio.

• • D

    Yes because it’s a part-to-part ratio.

Which of these ratios is equivalent to 2:3?

• • A

    2:6

• • B

    4:6

• • C

    3:2

• • D

    3:4

Simplify the ratio 5:35.

• • A

    1:7

• • B

    1:6

• • C

    5:7

• • D

    5:6

A cookie mixture requires 3 teaspoons of sugar for every 4 teaspoons of salt. You want to triple the mixture. Write a ratio that describes the ratio of teaspoons of sugar to salt you will use?

Write the ratio of striped squares to total squares.

Chidi goes hiking. She sees 1 hummingbird and 6 blackbirds. What is the ratio of hummingbirds to blackbirds?

In the student council election, Davina received 50 votes, Binh received 40 votes and Eden received 80 votes. What is the ratio of Binh’s votes to Davina’s votes in simplest form?

Desiree created a website with separate pages for videos, games, photos and poems. She made the table to show how many clicks each of these pages got on Tuesday. What is the ratio of clicks on the game page to clicks on the video page in simplest form?

The table below contains a and b in equivalent ratios. Fill in the missing value in the table.