Rates & 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 does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, even if the numbers are different.

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

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of units.

Front

If the ratio of red marbles to yellow marbles is 2:5, how many red marbles are there if there are 25 yellow marbles?

Back

There are 10 red marbles.

Front

What is the price per ticket if 4 tickets cost $252?

Back

The price per ticket is $63.

Front

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

Back

6 cups of sugar are needed.

Front

What is the ratio of tenants to cars if there are 30 tenants and the ratio is 3:5?

Back

There are 50 cars.

Front

How do you express the ratio 15:25 in simplest form?

Back

The simplest form of 15:25 is 3:5.