Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using the word 'to' (e.g., 3 to 4), using a colon (e.g., 3:4), or as a fraction (e.g., 3/4).

Front

What is a ratio table?

Back

A ratio table is a table that displays pairs of numbers that form equivalent ratios, helping to visualize the relationship between the quantities.

Front

If the ratio of red apples to green apples is 4:3, how many green apples are there if there are 12 red apples?

Back

There are 9 green apples. (4 red apples corresponds to 3 green apples, so 12 red apples corresponds to 9 green apples.)

Front

What is the ratio of red toy cars to all toy cars if there are 3 red, 2 black, and 5 white toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

Front

If Kevin mixes 3 oz of red paint with 5 oz of yellow paint, what is the total amount of paint?

Back

The total amount of paint is 8 oz.

Front

How do you find a missing number in a ratio table?

Back

To find a missing number in a ratio table, use equivalent ratios to set up a proportion and solve for the unknown.

Front

What is the equivalent ratio of 6:9?

Back

The equivalent ratio of 6:9 is 2:3.

Front

If a recipe calls for a ratio of 2 cups of flour to 3 cups of sugar, how much sugar is needed for 4 cups of flour?

Back

6 cups of sugar are needed. (If 2 cups of flour corresponds to 3 cups of sugar, then 4 cups of flour corresponds to 6 cups of sugar.)

Front

What is the simplest form of the ratio 8:12?

Back

The simplest form of the ratio 8:12 is 2:3.