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 to b' or 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 rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

Front

If Lynnette washes 95 cars in 5 days, how many cars does she wash each day?

Back

19 cars per day.

Front

What is the ratio of red to yellow LEGOS if there are 3 red and 6 yellow?

Back

1/2.

Front

If the ratio of tenants to cars is 3:5 and there are 30 tenants, how many cars are there?

Back

50 cars.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If Michael's juice recipe has 2 parts cherry and 1 part sprite, what is the ratio of cherry to total parts?

Back

2:3.

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio a:b to a fraction, write it as a/b.

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.