Ratios & Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division. It shows how many times one value contains or is contained within the other.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two fractions and set the products equal to each other. Then solve for the unknown variable.

Front

What is a ratio table?

Back

A ratio table is a table that shows equivalent ratios. It helps in finding missing values in a set of ratios.

Front

Back

x = 5

Front

Back

x = 35

Front

What is the missing value in the ratio 3:___ = 1:3?

Back

The missing value is 9.

Front

In a ratio table, if a = 36 and b = 108, what is the ratio?

Back

The ratio is 1:3.

Front

How many tablets of iodine are needed to disinfect 4 quarts of water if 2 tablets are needed for 1 quart?

Back

8 tablets are needed.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

How can you find a missing value in a ratio table?

Back

You can find a missing value by using equivalent ratios or by setting up a proportion.