Ratios and Unit 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 fraction a/b.

Front

How do you simplify a ratio?

Back

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

Front

Write the ratio of 15 carnations to 24 flowers as a fraction in simplest form.

Back

5/8

Front

What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

Back

2 to 5

Front

What is the ratio of votes for yellow to green if there are 18 votes for yellow and 9 for green?

Back

2:1

Front

Which of the following ratios is NOT equivalent to 3:5? 15:25, 9:15, 21:28, 30:50

Back

21:28

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound

Front

How do you find the unit rate from a total cost and quantity?

Back

Divide the total cost by the quantity to find the cost per unit.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.