Ratios/Ratio Tables

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

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

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities and helps to visualize equivalent ratios.

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 9 cups of flour?

Back

6 cups of sugar (since 2/3 of 9 is 6).

Front

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

Back

The ratio is 3:10.

Front

How do you find the total number of parts in a ratio?

Back

Add the numbers in the ratio together to find the total number of parts.

Front

What is the ratio of coaches to players if there are 3 coaches and 10 players?

Back

The ratio is 3:10.

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio to a fraction, write the first number as the numerator and the second number as the denominator.

Front

If you have a ratio of 4:5, what percentage does the first number represent of the total?

Back

The first number represents 44.44% of the total (4 out of 9 parts).

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.