Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you express a ratio?

Back

Front

What is a ratio table?

Back

A ratio table is a table that displays pairs of numbers that form equivalent ratios.

Front

If the ratio of apples to oranges is 2:3, how many oranges are there if there are 8 apples?

Back

There are 12 oranges. (Using the ratio 2:3, if 2 parts represent 8 apples, then 3 parts represent 12 oranges.)

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different (e.g., 2:3 is equivalent to 4:6).

Front

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

Back

To find a missing value in a ratio table, use the relationship between the known values to set up a proportion and solve for the unknown.

Front

What is the value of the ratio 8:2?

Back

Front

If a:b = 4:5, what is the value of b if a = 12?

Back

The value of b is 15. (Using the ratio, if 4 parts represent 12, then 5 parts represent 15.)

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they can be expressed as equivalent fractions.

Front

How can you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).