Rates and Ratios Review

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 unit rate?

Back

A unit rate is a comparison of a quantity to one unit of another quantity, often expressed as 'x per 1 unit'.

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 is the ratio of blue marbles to red marbles if there are 3 blue and 7 red?

Back

The ratio is 3:7.

Front

If you have 10 apples and 4 are red, what is the ratio of red apples to total apples?

Back

The ratio is 4:10, which simplifies to 2:5.

Front

What is the price per product if 8 products cost $14.00?

Back

The price per product is $1.75.

Front

If Sarah spends 15 minutes on 5 calls, how long will she spend on 12 calls?

Back

She will spend 36 minutes.

Front

What is the ratio of school apps to game apps if there are 5 school apps and 3 game apps?

Back

The ratio is 5:3.

Front

How do you express a ratio in simplest form?

Back

Divide both parts of the ratio by their GCD.