Ratios and Rates

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 simplify a ratio?

Back

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

Front

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or words per minute.

Front

If a car travels 150 miles in 3 hours, what is the rate of travel?

Back

The rate of travel is 50 miles per hour.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

The ratio is 4 red apples to 3 green apples.

Front

How do you convert feet to inches?

Back

To convert feet to inches, multiply the number of feet by 12, since there are 12 inches in a foot.

Front

What is the simplified ratio of 2 feet to 30 inches?

Back

The simplified ratio is 4:5.

Front

In a bag of marbles with 3 blue, 2 red, and 5 yellow marbles, what is the ratio of red to yellow marbles?

Back

The ratio of red to yellow marbles is 2:5.

Front

If there are 7 red circles and 4 blue stars, what is the ratio of red circles to blue stars?

Back

The ratio of red circles to blue stars is 7:4.