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:b'.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if 35 diapers cost $6.99, the unit rate is $6.99 ÷ 35.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a box of 35 diapers costs $6.99, the unit rate is the cost per diaper.

Front

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

Back

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

Front

How do you determine which is the better buy?

Back

To determine the better buy, calculate the unit price for each option and compare them. The lower unit price is the better buy.

Front

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

Back

The price per ticket is $252 ÷ 4 = $63.00.

Front

If 624 calories are in 3 servings, how many calories are in one serving?

Back

To find the calories per serving, divide 624 by 3, which equals 208 calories per serving.

Front

What does it mean if two ratios are equivalent?

Back

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

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.