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:b.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms of the ratio 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 'per unit' (e.g., miles per hour, dollars per item).

Front

How do you find a unit rate from a ratio?

Back

To find a unit rate, divide the first quantity by the second quantity to express it as a quantity per one unit.

Front

If there are 1,920 fence posts in 12 kilometers, how many posts are in 1 kilometer?

Back

160 fence posts.

Front

If there are 156 players on 13 teams, how many players are on each team?

Back

12 players per team.

Front

If Shelia rides 6,000 meters in 15 minutes, how far can she ride in 2 minutes?

Back

800 meters.

Front

How do you determine which swimming lesson is a better deal?

Back

Calculate the cost per hour for each instructor and compare the rates.

Front

If Danny charges $35 for 3 hours, what is his hourly rate?

Back

$11.67 per hour.

Front

If Martin charges $24 for 2 hours, what is his hourly rate?

Back

$12 per hour.