Rates and ratios

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:b'.

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 unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'x per 1 unit'.

Front

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

Back

The ratio of flour to sugar is 2:3.

Front

How do you find the total quantity from a ratio?

Back

To find the total quantity from a ratio, add the parts of the ratio together and multiply by the number of sets.

Front

What is the unit rate of 60 miles in 3 hours?

Back

The unit rate is 20 miles per hour.

Front

If there are 4 apples for every 5 oranges, what is the ratio of oranges to apples?

Back

The ratio of oranges to apples is 5:4.

Front

How do you convert a ratio to a fraction?

Back

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

Front

What is the ratio of 10 to 25 in simplest form?

Back

The simplest form of the ratio 10 to 25 is 2:5.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

The unit rate is 50 miles per hour.