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 does a ratio of 3:5 mean?

Back

It means for every 3 units of the first quantity, there are 5 units of the second quantity.

Front

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

Back

50 cars.

Front

What is the ratio of red toy cars to all toy cars if Patrick has 2 black, 3 red, and 5 white toy cars?

Back

The ratio is 3:10.

Front

How do you express a ratio as a fraction?

Back

To express a ratio as a fraction, write the first quantity as the numerator and the second quantity as the denominator.

Front

What is the boy:girl ratio in simplest form if a class has 15 boys and 20 girls?

Back

The boy:girl ratio is 3:4.

Front

If you have 15 girls and 6 boys, what is the ratio of girls to boys in simplest form?

Back

The ratio is 5:2.

Front

How many cups of water are needed for 5 scoops of coffee if 1 scoop requires 2 cups of water?

Back

10 cups of water.

Front

What is the first step in solving a ratio problem?

Back

Identify the quantities being compared and their relationship.